Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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in the state of missouri, there are 273 eight year olds diagnosed with …
With 99% confidence, it can be concluded that the difference in proportion of children diagnosed with ASD between Missouri and Arizona $(p_1 - p_2)$ is between - 0.018 and 0.001.
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category, number of students, students with food allergies, 24, vegetar…
11 percent
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8. read the following excerpt from the passage, then choose the correct…
B. Bats do things that help the Earth.
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giving a test to a group of students, the grades and gender are summari…
$\frac{3}{40}$
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a population of values has an unknown distribution with $mu = 230.3$ an…
$\mu_{\bar{x}} = 230.3$ $\sigma_{\bar{x}}\approx2.68$
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for a certain company, the equation used to determine profit y on x num…
C. Fewer Gadgets than Widgets have to be made for them to be profitable.
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determine whether this table represents a probability distribution. |$x…
No, it is not a probability distribution
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1. a persons self - advocacy abilities will influence a. their independ…
1. d. All of the above. 2. b. give you more control over your life. 3. d. All of the above. 4. b. asking questions. 5. d. All of the above. 6. c. it can be learned and strengthene…
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question 11 based on the boxplot above, identify the 5 number summary. …
6, 8, 11, 13, 17
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identifying the problem accidents per year at high - traffic intersecti…
Walnut St. and Birch St.
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the work week for adults in the us that work full time is normally dist…
There is not enough evidence to support the claim
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the work week for adults in the us that work full time is normally dist…
Fail to reject the null hypothesis
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what does a positive exponent in scientific notation mean? the number i…
The number is greater than 1
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the work week for adults in the us that work full time is normally dist…
$H_0:\mu = 47$ $H_1:\mu>47$ Test Statistic $\approx2.0267$ p - value $\approx0.0332$ The correct decision is to fail to reject $H_0$. The correct summary would be: There is not en…
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two 6 - sided dice are rolled. what is the probability the sum of the t…
$\frac{1}{9}$
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linear regression and correlation. x y 3 -1.75 4 -1.5 5 -6.55 6 -7.8 7 …
$y=-2.595x + 10.518$ $r=-0.880$
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for a normal variable x ~ n(μ = 41.2, σ = 0.4), find the probability p(…
$0.7734$
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state whether the following scatter plot has: 1 - positive correlation …
3 - No correlation
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on page 1 of passage 1, what does the word \abstract\ mean? art that do…
art that does not show objects as they really look
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calculate the mean and sample standard deviation of the data shown. rou…
mean: $18.88$ Sample standard deviation: $4.34$
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is this value from a discrete or continuous data set. your height in ce…
Continuous
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the meaning of the y intercept in the context of the problem is ... at …
At 7 AM, Sarah has 100 ounces of water in her water bottle.
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for a hypothesis test, alpha = 0.05 the computed p - value = 0.044 shou…
Reject $H_0$ There IS sufficient evidence to reject the Null Hypothesis and accept the alternative.
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hidden gems by ella wheeler wilcox we know not what lies in us, till we…
far down below the noisy waves
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passage 2 hidden gems by ella wheeler wilcox we know not what lies in u…
(No underlined phrases are shown in the text provided, so unable to give a specific option. But the approach is to look for a phrase indicating hidden or inward - located things i…
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integrate the language arts vocabulary study: compound words a compound…
A. 1. note, book 2. wild, flowers 3. bird, bath 4. hand, writing 5. child, like 6. back, pack B. 7. wildflowers 8. birdbath 9. handwriting 10. notebook 11. childlike 12. backpack
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5. why is cross training useful in food service? a) it teaches employee…
5. b) It builds understanding of each position 6. a) Inexperienced people overestimate their abilities 7. b) Team members can express ideas freely 8. b) Choosing to follow rules a…
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this line has a negative correlation which means it has a negative slop…
falling from left to right
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1. what does the acronym smart stand for in goal setting? b. specific, …
1. b. Specific, Measurable, Achievable, Relevant, Time - bound 2. c. It lacks specific metrics and measurability 3. d. 90% 4. c. Complete 30 minutes of studying three times per we…
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statistics students in oxnard college sampled 11 textbooks in the condo…
The linear - model is \(y = 0.05x+20.46\). The estimated cost when \(x = 503\) is \(\$45.61\)
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a random sample of beef hotdogs was taken and the amount of sodium (in …
The correlation coefficient is $r = 0.27670$, which is a weak positive correlation. The coefficient of determination is $r^{2}=0.0766$, so $7.66\%$ of the variability in the amoun…
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a regression was run to determine if there is a relationship between ho…
106
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given the scatter plot shown, determine if the correlation is positive,…
Negative
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annual high temperatures in a certain location have been tracked for se…
$20.9568+1.2857x$
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the linear regression equation for a data set is y = 3.2x - 1.2. the ac…
$2.4$
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true or false: correlation implies causation. that is: can you assume t…
A. False
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formulate but do not solve the following exercise as a linear - program…
Maximize $P = 0.08x+0.12y$ subject to the constraints: $x + y=20$ $x\geq4y$ $x\geq0$ $y\geq0$
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here are the hottest recorded temperatures (in °f) for seven cities thr…
| Temperature (in °F) | Frequency | | ---- | ---- | | 101 to 106 | 3 | | 107 to 112 | 1 | | 113 to 118 | 3 |
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formulate but do not solve the following exercise as a linear - program…
$P = 0.08x + 0.12y$ Subject to the constraints: $x + y=80$ $x\geq4y$ $x\geq0$ $y\geq0$
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out of a sample of 300 adults aged 18 to 30, 99 still lived with their …
$0.2602< p<0.3998$
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a student thinks 3^(-2) means “-3 squared.” explain their mistake and c…
The student mistook the negative exponent for a negative sign on the base. The correct value of \(3^{-2}\) is \(\frac{1}{9}\).
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it can expose american and british readers to ideas and values outside …
The translation has borrowed the original word to use in the translation, rather than trying to translate it
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which one of the following is true of world literature? it includes lit…
It can expose American and British readers to ideas and values outside of their own
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mr. sanders gave his students a biology test last week. here are the te…
| Test score | Frequency | |--|--| | 66 to 71 | 1 | | 72 to 77 | 5 | | 78 to 83 | 1 | | 84 to 89 | 4 |
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you recently sent out a survey to determine if the percentage of adults…
a. $(0.6179,0.6611)$ b. Yes, because the proportion of adults who used social media five years ago is not inside the confidence interval. c. The percentage increased.
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express the confidence interval 12.8% ± 5.9% in the form of an inequali…
$6.9\%<p<18.7\%$
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suppose you compute a 98% confidence interval. what will happen to the …
The confidence interval will narrow.
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one gallon of gas is put into each of 30 test cars. the resulting gas -…
A. $(28.1, 28.9)$
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out of a sample of 300 adults aged 18 to 30, 99 still lived with their …
The 99% confidence interval for the true population proportion of adults ages 18 to 30 that still live with their parents is $(0.2601, 0.3999)$
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which statement best describes the meaning of 9^{\frac{3}{2}}?
$9^{\frac{3}{2}}$ is equivalent to the square - root of $9$ cubed or the cube of the square - root of $9$, and its value is 27.
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out of a sample of 300 adults aged 18 to 30, 99 still lived with their …
The 99% confidence interval for the true population proportion of adults ages 18 to 30 that still live with their parents is $(0.2602,0.3998)$.
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out of a sample of 300 adults aged 18 to 30, 99 still lived with their …
Lower limit: $0.2592$, Upper limit: $0.4008$
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a 95% confidence interval is 6331 < μ < 6369, where μ is the mean diame…
With 95% confidence, it can be said that the true mean diameter of the Earth is between 6331 and 6369.
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we wish to estimate what percent of adult residents in a certain county…
$0.779 < p < 0.841$
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3. in a factory that produces a certain type of item there are three ma…
### 3. #### (a) 1. **First - level branches**: - The first - level branches of the tree diagram represent the three machines. Let \(P(A)=0.65\), \(P(B) = 0.25\), and \(P(C)=0.10\)…
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we wish to estimate what percent of adult residents in a certain county…
$0.779 < p < 0.841$
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the table contains the percentage of woman receiving prenatal care for …
With 90% confidence, it can be said that the average percentage of women receiving prenatal care is between \(87.75\) and \(91.45\)
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3. part a: what is the meaning of \tribulation\ in paragraph 14? a. adv…
C. difficulty
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in a survey, 16 people were asked how much they spent on their childs l…
$2.95$
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question 24. the u.s. constitution requires that criminal justice case …
Question 24: a. Due process Question 25: c. Misdemeanor
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21. what crime is martha kimmel charged with if her criminal offense is…
21. c. Felony 22. b. Consecutive 23. b. Consecutive
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read the excerpt from animal farm and the passage on the history of the…
Napoleon wants to make the farm an industrial power, just as Stalin wanted to make the Soviet Union an industrial power no matter the sacrifices
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directions: use the production possibility frontier (the curve joining …
1. Yes, point E is non - feasible because it is outside the PPF, meaning current resources and technology do not allow for that production combination. 2. Alabama might choose to …
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a survey was conducted to study the proportion of households in a commu…
a. $E(\hat{p}) = 0.25$ b. $\sigma_{\hat{p}}\approx0.0433$ c. The sampling distribution of $\hat{p}$ is approximately normal with mean $\mu_{\hat{p}} = 0.25$ and standard deviation…
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grade 8 resources ela.8.r.3.1 analyze how figurative language contribut…
6. b) She gains new resolve to live and recovers 7. b) The harsh reality of illness 8. a) Her desire for comfort and nourishment 9. b) His sacrifice and ultimate act of love 10. a…
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a retail manager is analyzing the percentage of customers who make a pu…
$E(\hat{p}) = 0.35$, $\sigma_{\hat{p}}\approx0.0445$, $np = 40.25$, $n(1 - p)=74.75$ b. $0.9756$ c. $0.7372$
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suppose a population proportion is 0.7 and a sample of size 300 will be…
a. $0.7416$ b. $0.9412$
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ela.8.r.3.3 compare and contrast the use or discussion of archetypes in…
5. B. Nurturing and authoritative 6. B. She intends to teach him a lesson. 7. D. He begins to struggle and appears frightened.
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touching base twelve words of latin origin appear in this box. the ital…
1. g. exaggeration 2. c. tricky; off the beaten path 3. j. summarize 4. a. social 5. l. place for purification 6. b. hindrance 7. k. deny under oath 8. e. changeable 9. f. thin, u…
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3. the literal, dictionary - definition meaning of a word. (5 points) i…
C. Denotation
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2. the implied meaning of a word; words can broadly have positive, nega…
B. Connotation
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4.43 test (cst): reinterpreting fiction the planet mars, i scarcely nee…
A. It would have seemed more authoritative.
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choose one sentence/phrase and explain how the bolded words meaning is …
Since bene means good or well, benefactor means a person who gives help or money for a good cause.
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1. a commonly used phrase that signifies something very different than …
D. Idiom
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the financial report of a business association indicates that 29% of bu…
When $n = 10$, the probability is $0.2812$. When $n = 50$, the probability is $0.5762$. When $n = 150$, the probability is $0.8354$. When $n = 400$, the probability is $0.9768$. F…
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what effect do the screams and shrieks in the radio broadcast war of th…
A. They add to the suspense of the story.
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first read: concept vocabulary identify the choice that best answers th…
C. right to hold power
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which piece of evidence would best support this argument? wolves should…
D. According to national park statistics, wolf populations in parks like Yellowstone and Zion are at their highest point in over a century.
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how did the allies defeat japan? ¿cómo derrotaron los aliados a japón? …
# Breve explicación: Los Aliados derrotaron a Japón a través de una combinación de bombardeos sistemáticos y el lanzamiento de bombas atómicas. El 6 de agosto de 1945, Estados Uni…
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first read: concept vocabulary identify the choice that best answers th…
C. She has the power to do anything she wants.
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first read: concept vocabulary identify the choice that best answers th…
D. a loud speech of reprimand by a superior
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14. what is crucial for preventing misleading results in surveys? a. st…
D. Questionnaire design
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fill in the blank. complete the following sentences using the word bank…
1. Defamation 2. Benign 3. Capricious 4. Esoteric 5. Dawdle
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question 14 (1 point) text: \first, a seed germinates. then, a seedling…
A. It uses a chronological order to explain the process of plant growth.
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question 20 4 pts what crime is bob turner charged with if his offense …
c. Misdemeanor
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question 7 (1 point) excerpt from a biography: \born into poverty, she …
C. The use of chronology highlights the individual's journey.
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please surveyed teens and adults to find the average number of hours of…
Teens have more variability in the hours of sleep.
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4. book sales a. find the constant rate of change and interpret its mea…
a. The constant rate of change is 500. It means that the number of book - sales increases by 500 per day. b. Yes, a proportional linear relationship exists. The graph is a straigh…
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question 4 (1 point) read the following sentence from a psychology text…
D. A persistent source of annoyance or trouble
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section a: comprehension (20 marks) passage a - non - fiction (8 marks)…
1. The answer would involve analyzing Greenwald's argument about "nothing to hide" and explaining why he believes it is flawed based on the passage. This may include points about …
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for exercises 3 and 4, refer to the graphs be 3. hawk diving toward pre…
a. The constant rate of change is - 9 feet per second. It means the hawk's altitude is decreasing at a rate of 9 feet per second. b. No, a proportional linear relationship does no…
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what does this sign mean? a yield sign ahead b stop sign ahead c railro…
A. YIELD sign ahead
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practice it! select the statement that accurately summarizes the distri…
The majority of people in Florida live on or near a coastline.
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10. what does amicus curiae mean? a. legal precedent b. friend of the c…
B. Friend of the court
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wwii test which claim better supports how entering the war impacted the…
Entering the war impacted the US economy because it created new jobs, people were able to pay off their debts, and allowed people to save money [La entrada en guerra afectó a la e…
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what does this sign mean? a winding road ahead - first curve to the lef…
B. Road curves to the left, and side road entering from the right
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1. which group was the first to face federal immigration restrictions b…
1. B. Chinese 2. A. Fear of losing American jobs 3. B. Assimilation into a single American culture 4. B. Immigration Act of 1882 5. B. They wanted to keep their religious and cult…
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task: find the measure of center for the height of the students a. find…
The values of mean, median, mode, five - number summary (Min, Q1, Median, Q3, Max), inter - quartile range, lower and upper outliers, range, and standard deviation will be obtaine…
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31) \the team gathered data the report was submitted on time.\ which re…
A. The team gathered data, and the report was submitted on time.
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task: a. find the measure of center for the height of the students mean…
Since no data on student heights is given, we cannot provide numerical answers for mean, median, mode, range, SD, five - number summary, IQR, lower outlier, and upper outlier.