Statistik
Datenanalyse, Wahrscheinlichkeitsverteilungen und Hypothesentests.
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the summary statistics shows the distribution of the percent of foreign…
$z=-1.12$. Montana's percent of foreign - born residents is 1.12 standard deviations below the mean percent of foreign - born residents for all states.
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for a correlation coefficient, the positive or negative sign shows the …
None of the provided options are correct. The strength of the relationship in a correlation coefficient is shown by the absolute - value of the coefficient, not by a positive or n…
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how many pairs of shoes does a typical teenage boy own? to find out, tw…
$\bar{x}=11.64$ pairs, so the correct option is $\bar{x}=11.64$ pairs.
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three landmarks of baseball achievement are ty cobbs batting average of…
Cobb: $z = 4.15$ Williams: $z = 4.26$ Brett: $z = 4.07$ Williams' z - score is the highest.
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events a and b are independent events. find the indicated probability. …
$0.63$
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question 2 of 15 rebecca and her father both graduated from the same hi…
(a) Rebecca: $z\approx1.43$ Rebecca's father: $z\approx1.83$ (b) Rebecca's father had a **better** GPA relative to his peers, because his z - score was **higher than** Rebecca's. …
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monday week 9 language practice 1. complete this sentence. sean and set…
Monday: 1. was full of old books and toys 2. They might start adding walls or a roof to the tree - house 3. whistle 4. metaphor 5. reveal or disclose Tuesday: 1. hammer 2. Their; …
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question 2 events a and b are independent events. find the indicated pr…
$0.63$
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the new england colonies the general good the phrase \general good\ mea…
Monarchy is rule by a single leader. Majority rule means rule by the majority of the people.
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suppose that jason recently landed job offers at two companies. company…
Company A: $z = 1.63$ Company B: $z = 1.39$ Company A, because the z - score for $55,000$ at Company A is greater than the z - score for $55,000$ at Company B.
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an easy way to save is to pay yourself first. that means each pay perio…
C. It establishes a habit of setting money aside before being tempted to spend it frivolously.
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giving a test to a group of students, the grades and major (stem=scienc…
$\frac{45}{66}\approx0.6818$
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directions: as your teacher reviews the guidelines for using semicolons…
A conjunctive adverb is a word that shows a relationship between ideas. Conjunctive adverbs work well with semicolons because they create a smooth transition between independent c…
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ancient egypt was a polytheistic society. what does this mean? egyptian…
B. Egyptians worshipped many gods
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homes using television (hut) at a particular time is one measure of vie…
$0.02$
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homes using television (hut) at a particular time is one measure of vie…
$0.32$
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homes using television (hut) at a particular time is one measure of vie…
$37.33$
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meaning options (4 of 4) the opening paragraph or section of a text a s…
body paragraph: a paragraph that appears between the introduction and the conclusion of an essay conclusion: the closing paragraph or section of an essay, argument, or narrative i…
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exit assessment shifting patterns of immigration where immigrants came …
1840 - 1860: Northern and western Europe 1880 - 1900: Eastern and southern Europe
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more than 700 passengers from the titanic. which detail from the text b…
D. "After hearing Phillips's distress signals, Cottam relayed the message to his captain, who immediately turned the Carpathia northward."
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highlight the claim, evidence, and reasoning in the paragraph below. cl…
Claim: Peer pressure hurts students' academic performance. Evidence: One report by the Heritage Organization found that approximately one in four elementary school students felt t…
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what is etymology? (1 point) a words origin and how its meanings have c…
a word's origin and how its meanings have changed over time
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18 in the barracks, how many people shared each bunk? 19 how many peopl…
22. Runs 24. Work makes you free 25. No
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literary word choice quick check what is a words connotation? (1 point)…
the feeling the word gives the reader
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we heard racket about there being mysteries behind these gates, but sau…
They imply the narrator considers the adventure a joke
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we heard racket about there being mysteries behind these gates, but sau…
They imply the narrator considers the adventure a joke
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18 in the barracks, how many people shared each bunk? 19 how many peopl…
22. Runs 23. Guards (not in options but based on knowledge) 24. Work makes you free 25. No
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22% of all tires manufactured by a company are defective. if 20 differe…
B. 0.0010
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a basket contains two apples and a peach. you randomly pick a piece of …
B. $\{(A_1,A_2),(A_1,P),(A_2,A_1),(A_2,P),(P,A_1),(P,A_2)\}$
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a department store has daily mean sales of $28,372.72. the standard dev…
C. 3.26, yes
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a football player attempts a pass in overtime. the pass attempt can res…
D. {completion, incompletion, turnover}
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suppose that the waiting times at an emergency room of a miami hospital…
A. greater than or equal to 37.5 minutes
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the z - score of your time to run the 400 meter race of the decathlon e…
A. 2.32
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ch 17 there is an evidence against the null hypothesis whenever the p -…
1. small. 2. $H_a:\mu < 18$.
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when a button is pressed, a computer program outputs a random even numb…
C. 243
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the band must decide when to meet for a practice. the possible days are…
A. 2
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consider the following job applicants. applicant 1 male 45 applicant 2 …
$\frac{1}{10}$
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three chocolates remain in a box of chocolates. one has cherry filling …
C. 6
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consider the following job applicants. applicant 1 male 45 applicant 2 …
0.6
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the systolic blood pressures of women aged 18 to 24 are normally distri…
C. (94.8917, 143.9083)
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find the mode of the following numbers: 14, 6, 9, 14, 16, 6, 21, 14, 24…
14
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question 6 read this passage from the article: amazingly for the era, h…
C. closed to some races or groups
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a new car is available in a sedan model and a hatchback model. it is av…
D. 6
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scores on the sat test have a mean of 1518 and a standard deviation of …
B. The ACT score of 17.0 is relatively better than the SAT score of 1490.
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irony quick check 4 of 5 which type of irony is known as situational ir…
when an outcome occurs that is very different from what is expected
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a stage supervisor was trying to determine the most accurate quote for …
3.7
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question 1 ch 16 what is statistical inference? drawing conclusions abo…
Question 1: B. Drawing conclusions about a population based on information in a sample. Question 2: A. The sampling distribution of $\bar{x}$ tells how close $\bar{x}$ is likely t…
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use the given sample data to find q3. 49 52 52 52 74 67 55 55 a. 55.0 b…
D. 67.0
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a banks loan - officer rates applicants for credit. the ratings are nor…
C. 0.4332
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question 8 8 / 8 read this passage from the article: seward just had to…
B. a silly idea or act
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which of the following statements are true: (a) if the standard deviati…
C. (a) and (f)
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choose the correct meaning of the root word in each sentence. 1 point i…
earth
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which word is spelled correctly? * pseudonim sluth solstice prodigee ch…
C. solstice
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based on a comcast survey, there is a 0.8 probability that a randomly s…
A. 0.00467
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question 7: word knowledge diversion most nearly means a: distraction b…
A. Distraction
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the histogram to the right represents the weights (in pounds) of member…
17
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what is the meaning of \innate\? * learned natural studied practiced
B. natural
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match the literary devices to its meaning on the left. * 1 points analo…
- "uses a different sense to describe another sensory experience": synesthesia - "words or phrases that give a clue to what's going to happen in the story": foreshadowing - "estab…
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find the median of the following numbers: 16, 11, 17, 11, 12, 14, 11, 1…
$11.5$
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the histogram to the right represents the weights (in pounds) of member…
20
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question 9 ch 16 what do we hope is within a confidence interval? the m…
Question 9: the unknown parameter Question 10: Drawing conclusions about a population based on information in a sample
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question 1 find the mean of the following numbers: 19, 18, 13, 17, 13, …
16
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the histogram to the right represents the weights (in pounds) of member…
17
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what does the word \well\ mean in this part of the text? a a safe sourc…
A. a safe source of water
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42 multiple choice 1 point misdemeanor - stealing property worth less t…
C. petty larceny
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ch 16* suppose that we computed a 99% confidence interval for μ instead…
This 99% confidence interval would have a larger margin of error than the 95% confidence interval.
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the table shows speeds in miles per hour for four horses. time horse 1 …
Graph 3
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a company had 80 employees whose salaries are summarized in the frequen…
A. $8195.1$
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a company had 80 employees whose salaries are summarized in the frequen…
(There is no option that exactly matches the calculated value due to possible rounding differences in the original options, but the closest value should be selected based on the a…
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37 multiple choice 1 point an unintended killing that takes place durin…
Involuntary manslaughter (not listed in options but is the correct term for the description; among given options, none are correct as described in the question)
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suppose that the probability is 0.0122 that a person who purchases a ti…
C. 0.5893
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suppose that car gas efficiency in florida is normally distributed with…
A. less than or equal to 24.62 miles per gallon
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a test consists of 10 true/false questions. to pass the test a student …
C. 0.377
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a statistics professor plans classes so carefully that the lengths of h…
$0.025$
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a tennis player makes a successful first serve 51% of the time. if she …
There seems to be an error in the provided options as the calculated value is approximately $0.184$. If we assume there was a calculation error in the above steps and re - calcula…
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the customer - service department of a phone company is experimenting w…
B. Automated Menu: 45.4% Live agent: 26.3% There is substantially more variation in the times for the automated menu system
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ch 16 you plan to construct a confidence interval for the mean, μ, of a…
All of the above (Use a lower level of confidence, Reduce sigma, Increase the sample size)
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28 multiple choice 1 point this means that the intent (mens rea) was ac…
malice aforethought
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this means no mental state is required at all any person doing the act …
None of the above options are correct as they all involve mental - state requirements while the description indicates a lack of such a requirement.
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this means no mental state is required at all any person doing the act …
None of the above options are correct based on the given description.
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this means that a person does the crime unintentionally but with an ext…
criminal negligence
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this means that the person either knew the result would happen or consc…
specific intent
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this means that the person intended just what happened; they did it on …
specific intent
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21 multiple choice 1 point this means that the act has to cause the har…
a prohibited act
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question 20 ch 17 suppose the p - value for a hypothesis test is 0.304.…
Do not reject the null hypothesis.
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20 multiple choice 1 point this means that the person had to intend the…
C. criminal intent
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the term citizenship means that citizens in a country: a. must complete…
B. have certain rights, duties, and responsibilities
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dependent variable is passengers r - squared = 71.1% s = 104330 variabl…
a) Intercept: Predicted passengers in 1990 is 282584. Slope: Passengers increase by 59704.4 per year since 1990. b) The model explains 71.1% of the variation in passengers. c) On …
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ch 17 a p - value is always computed assuming that the alternative hypo…
the null hypothesis is true.
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mens rea this means that the person had a guilty mind a prohibited act …
C. criminal intent
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ch 17 a statistician wishing to test a hypothesis that students score a…
finding the area to the left of -.8944 and doubling it. ### Question 2
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ch 17* you use software to carry out a test of significance. the progra…
1. C. statistically significant at both $\alpha = 0.05$ and $\alpha=0.01$ 2. A. the P - value is less than or equal to $\alpha$
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question 14 ch 17 null and alternative hypotheses always refer to a: po…
Question 14: A. population parameter. Question 15: C. true, of the test statistic taking a value as extreme as or more extreme than that actually observed is 0.008.
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crimes punishable by time in a local jail common laws felonies legislat…
D. misdemeanors
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ch 17 the small p - value means that the sample data has a strong evide…
Question 11: True Question 12: 7 Question 13: \(n=(z^*\sigma/m)^2\)
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ch 16 the mean iq of all seventh - grade girls in the school district i…
Question 7: This is a correct interpretation of the interval. Question 8: estimate ± margin of error.
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ch 16* suppose that we took an srs of 1600 eighth - graders and found $…
First question: smaller. Second question: The margin of error for our 99% confidence interval would decrease.
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question 14 1 pts ch 17 in formulating hypotheses for a statistical tes…
Question 14: A. a statement of "no effect" or "no difference." Question 15: True
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question 13 ch 17 null and alternative hypotheses always refer to a: sa…
C. population parameter
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which of the following is not true? choose the correct answer below. a.…
B. A z - score is an area under the normal curve.