Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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a data set includes weights (in grams) of 38 reeses peanut butter cup m…
Reject the null hypothesis. There is sufficient evidence at the 0.05 significance level to reject the claim that the sample is from a population with a mean equal to $8.953$ g.
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a data set includes weights (in grams) of 38 reeses peanut butter cup m…
- \(H_{0}:\mu = 8.953\), \(H_{1}:\mu eq8.953\) - Test statistic: \(-3.72\) - P - value: \(0.001\) - Conclusion: Reject \(H_{0}\). There is sufficient evidence to warrant rejectio…
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a data set includes times (in minutes) of taxi cab rides in new york ci…
\(H_0:\mu = 15\) \(H_1:\mu<15\)
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a basketball player, ava, trackers her free throw statistics over three…
Part A: \(\frac{134}{190}=\frac{p}{100}\) Part B: \(29\%\)
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perhaps it is easy for those who have never felt the stinging darts of …
C. African Americans have a right to be tired of waiting for change
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a data set about speed dating includes \like\ ratings of male dates mad…
Reject \(H_0\). There is sufficient evidence to conclude that the mean of the population of ratings is less than \(6.00\).
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a data set about speed dating includes \like\ ratings of male dates mad…
- Test statistic: \(-3.27\) - P - value: \(0.001\) Since the P - value (\(0.001\)) is less than the significance level (\(\alpha = 0.01\)), we reject the null hypothesis \(H_0:\mu…
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a data set about speed dating includes \like\ ratings of male dates mad…
C. \(H_0:\mu = 6.00\), \(H_1:\mu<6.00\)
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formulate the indicated conclusion in nontechnical terms. be sure to ad…
D. There is sufficient evidence to support the claim that the mean is greater than 32 miles per gallon.
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3. the data set shows the number of t - shirts sold each day of a sale …
\(34\)
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thirty - six different video games showing alcohol use were observed. t…
A. The number of degrees of freedom The value of \(df\) is \(36-1=35\)
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the following list gives the number of siblings for each of 11 students…
\(0,4\)
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the employees of a company have different hobbies. • 14 men who like pl…
A. For every man who likes running, 7 men like playing golf.
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find the standardized test statistic t for a sample with ( n = 20 ), ( …
A. - 0.89
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2. the table shows the number of books borrowed from the school library…
\(152\)
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a formal hypothesis test is to be conducted to test the claim that the …
a. \(H_0:\mu = 30\) b. \(H_1:\mu eq30\) c. B (Reject the null hypothesis)
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which of the following is not a characteristic of the t test? choose th…
A. The Student t distribution has a mean of \(t = 0\) and a standard deviation of \(s = 1\).
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peyton farquhar was a well to do planter, of an old and highly respecte…
It brings the reader to the past to provide background information about the main character.
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1. the quiz scores of eight students are 12 points, 18 points, 20 point…
\(16\)
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ray predicted that he would score 16 points during the basketball game.…
\(33.3\%\)
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which statement explains the difference between connotation and denotat…
Connotation is the feeling a word evokes, and denotation is the dictionary definition of a word.
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directions: type the correct answer in each box. use numerals instead o…
3 to 1
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a data set includes weights (in grams) of 35 reeses peanut butter cup m…
\(0.005\)
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describe each expression. the expression ( 6x + 8 ) means 8 more than t…
The first blank is "times" and the second blank is "sum".
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describe each expression. the expression ( 6x + 8 ) means 8 more than t…
The first blank is \(8\) and the second blank is \(6\).
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assume that a simple random sample has been selected from a normally di…
B. There is strong evidence that the mean is less than 1000 hic, but one of the booster seats has a measurement that is greater than 1000 hic.
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assume that a simple random sample has been selected from a normally di…
The \(P\) - value is \(0.0073\)
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escribe each expression. he expression ( 6 x + 8 ) means 8 more than th…
The first blank is \(8\), and the second blank is \(6\).
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after a stressful day, you go home to take a nap. you estimated you sle…
\(56\%\)
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describe each expression. the expression ( 6x + 8 ) means 8 more than t…
The expression \(8x - 6\) means \(6\) less than the product of \(8\) and a number.
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assume that a simple random sample has been selected from a normally di…
\(t\approx - 3.64\)
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describe each expression. the expression 6x + 8 means 8 less than the p…
more than
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when who examines gender when determining the health of a nation, what …
The ratio of men to women should remain in proportion.
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assume that a simple random sample has been selected from a normally di…
D. \(H_0:\mu = 1000\) hic, \(H_1:\mu<1000\) hic
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the box plot shows the number of raisins found in sample boxes from bra…
B. The number of raisins in boxes from Brand C varies more than boxes from Brand D.
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describe each expression. the expression 2x - 4 means 4 less than the s…
For \(2x - 4\): product For \(2(x - 4)\): difference
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listed below are the lead concentrations (in μg/g) measured in differen…
\(0.092\)
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describe each expression. the expression ( 2x - 4 ) means 4? the? of 2 …
subtracted from; product
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tyler thought the new ipad would cost $259, but it was actually $299. w…
\(13\%\)
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listed below are the lead concentrations (in μg/g) measured in differen…
$-1.44$
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listed below are the lead concentrations (in μg/g) measured in differen…
\(H_0:\mu = 14.0\) \(H_1:\mu<14.0\)
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describe each expression. the expression 2x means the product of 2 and …
difference
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a data set about speed dating includes \like\ ratings of male dates mad…
\(0.134\)
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describe each expression. the expression 2x means the? of 2 and x.
product
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a data set about speed dating includes \like\ ratings of male dates mad…
The test statistic is \(-1.11\)
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a data set about speed dating includes \like\ ratings of male dates mad…
A. \(H_0:\mu = 7.00\), \(H_1:\mu<7.00\)
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a data set includes times (in minutes) of taxi cab rides in new york ci…
\(0.064\)
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a data set includes times (in minutes) of taxi cab rides in new york ci…
\(H_0:\mu = 15\) \(H_1:\mu<15\)
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patty casually recorded her grade for the nine weeks in her notebook. s…
\(11.1\%\)
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which of the following is not a requirement for testing a claim about a…
A. The sample mean, \(\bar{x}\) is greater than 30.
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a data set includes weights (in grams) of 35 reeses peanut butter cup m…
\(t = 0.00\)
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a data set includes weights (in grams) of 35 reeses peanut butter cup m…
\(H_0:\mu = 8.953\) \(H_1:\mu eq8.953\)
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question 1 of 10 which of the following contributed to the soviet union…
A. Their huge nuclear arsenals meant that a war could completely destroy both countries.
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anjay wasnt sure about an answer on his science test. he guessed 84 deg…
11%
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thirty - seven different video games showing violence were observed. th…
C. The number of degrees of freedom The value of $df$ is $36$.
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thirty - seven different video games showing violence were observed. th…
C. The number of degrees of freedom. The value of \(df=n - 1=37-1 = 36\).
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larry likes to go on canoe trips, and on each trip he purchases oars to…
\(\frac{3}{10}\)
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twelve different video games showing alcohol use were observed. the dur…
C. The sample observations must be a simple random sample. D. Either the population is normally distributed, or \(n > 30\), or both.
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which of the following is not a characteristic of the t test? choose th…
D. The Student t distribution has a mean of \(t = 0\) and a standard deviation of \(s = 1\).
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which of the following is not a requirement for testing a claim about a…
B. The population mean, \(\mu\), is equal to \(1\)
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use the wording of final conclusion flow chart interactive to answer th…
B. There is sufficient evidence to support the claim that the mean weight of African elephants is greater than 2000 kg.
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how did the spread of information expose americans to new ideas? (1 poi…
Industrialist elites were able to see images and read the words of people who lived far away for the first time.
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actividad 4 make the following articles and nouns plural, then write th…
2) Plural form: Las mochilas; English: Backpacks 3) Plural form: Los escritorios; English: Desks 4) Plural form: Los pupitres; English: Desks 5) Plural form: Las carpetas; English…
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use the excerpt to answer the question. \the rich consume little more t…
laissez - faire capitalism
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all of the new deal programs fit easily and nicely into just one of the…
False - the categories can easily connect to each other, meaning some programs could address 2 or 3 of the R's simultaneously.
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question 5 (2 points) there are 10 people on the debate team. out of th…
A) Permutation B) 90
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complete the sentence so that it uses personification. the wild orchids…
saluted
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1) choose the best answer. what does the word \hellenistic\ mean? has t…
refers to anything that is Greek
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current skill you spin this spinner. what is the probability of the spi…
$\frac{1}{8}$
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current skill you spin this spinner. what is the probability of the spi…
$\frac{1}{8}$
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use the table to answer the question. the table dispalys the number of …
\(2\)
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current skill $ you spin this spinner. what is the probability of the s…
\(\frac{1}{8}\)
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current skill $ you randomly draw one marble from this collection. what…
\(\frac{1}{3}\)
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min - juns yummy food store sold 5 biscuits. one of them was a whole wh…
\(\frac{1}{5}\)
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lees yummy food store sold 15 biscuits. three of them were rye biscuits…
\(0.80\)
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current skill $ trans yummy food store sold 20 bagels. eight of them we…
\( 0.40 \)
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which box plot represents a data set with a lower quartile of 24 and an…
The first box - plot (the orange one)
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you spin a spinner that is equally divided into 7 parts. 1 part is pink…
\(\frac{5}{7}\)
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which box plot represents a data set with a lower quartile of 24 and an…
The first box - plot (the orange - colored one) represents a data set with a lower quartile of \(24\) and an upper quartile of \(42\).
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multiple - choice question which is the best description of what fdr me…
The US must supply Great Britain with war materials to help fight the war.
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which r-value suggests a strong negative correlation? a. r = 0.1859 b. …
D. \(r=-0.9874\)
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the table shows test scores for five students. do the data show a posit…
The data show a positive correlation. The data show no causation.
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which box plot represents the data set 1, 1, 3, 3, 3, 7, 9, 9, 9, 9, 15…
C.
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the expression $a(t)=1200cdot(1.07)^{t}$ models the amount of money in …
First, rewrite the expression as \(1200\cdot(1.07^{\frac{1}{12}})^{12t}\) using the identity property of multiplication. Then, change the expression to \(1200\cdot(1.005654)^{12t}…
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random students work from january 2016 regents 30 a statistics class su…
1. The student's work is correct. They set up the proportion \(\frac{x}{351}=\frac{70}{105}\) (where \(x\) is the number of males who prefer comedy in the school of 351 males). Cr…
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h-ready identifying central idea - quiz - level e this bog body was dis…
- First blank: mummies - Second blank: well - preserved - Third blank: attacked (or a similar word indicating a violent cause of injury) - Fourth blank: their dead (or a more gene…
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descriptive statistics data mean 614.38 median 615.00 mode 620.00 stand…
\(2.50\)
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below are the monthly rents paid by 30 students who live off campus. 62…
Mean: \(614.38\), Median: \(615\), Mode: \(620\), Standard Deviation: \(78.09\)
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below are the monthly rents paid by 30 students who live off campus. 62…
| Descriptive Statistics | Data | |--|--| | Mean | \(608.83\) | | Median | \(615.00\) | | Mode | \(620.00\) | | Standard Deviation | \(189.60\) | | z - score for \(810\) | \(1.06\…
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ready identifying central idea -- quiz -- level e this bog body was dis…
- First blank: *preserved* - Second blank: *had* - Third blank: *when* - Fourth blank: *bodies*
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from january 2016 algebra 1 cc regents 1. solve yourself 30 a statistic…
\(234\)
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on san martin boulevard, embedded sensors kept track of the vehicle tra…
(a) \(x_{min}\approx2200\), \(Q_1\approx3000\), \(Q_2\approx3500\), \(Q_3\approx4000\), \(x_{max}\approx4800\) (b) Yes, the distribution is symmetric.
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the dot plot shows predictions for the winning time in the 200 - meter …
\(2.2\)
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each day, talisa exercises by first stretching and then swimming some l…
B. \(y = 2x+15\)
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convert each individual data value to a standardized z - score. a - 1. …
a - 1. \(z\approx2.571\) a - 2. No, this is an unusual observation. b - 1. \(z\approx - 2.031\) b - 2. No, this is an unusual observation. c - 1. \(z\approx0.167\) c - 2. No, this…
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which phrase best describes a characteristic of a base word? (1 point) …
has meaning on its own
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17. connect to data. fifty students say they have traveled on a subway.…
\(5\)
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from january 2016 algebra 1 cc regents 1. solve yourself 30 a statistic…
\(234\)
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the builders would make stacks of stone steps on top of each other to c…
a pile of something
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collected in the channel. then people needed a way to get to this water…
"go up and over"