A data set includes data from student evaluations of courses. The summary statistics are nequals 91,...
A data set includes data from student evaluations of courses. The summary statistics are nequals 91, x overbar equals4.17, sequals 0.69. Use a 0.10 significance level to test the claim that the population of student course evaluations has a mean equal to 4.25 . Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? A. Upper H 0 : mu equals4.25Upper H 1 : mu greater than4.25 B. Upper H 0 : mu not equals4.25Upper H 1 : mu equals4.25 C. Upper H 0 : mu equals4.25Upper H 1 : mu less than4.25 D. Upper H 0 : mu equals4.25Upper H 1 : mu not equals4.25 Determine the test statistic. nothing (Round to two decimal places as needed.) Determine the P-value. nothing (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. ▼ Fail to reject Reject Upper H 0 . There is ▼ not sufficient sufficient evidence to conclude that the original claim that the mean of the population of student course evaluations is equal to 4.25 ▼ is is not correct.
State the conclusion for the test.
A.
Fail to reject
the null hypothesis. There
is not
sufficient evidence to support the claim that the cans of diet soda have mean weights that are lower than the mean weight for the regular soda.
B.
Reject
the null hypothesis. There
is
sufficient evidence to support the claim that the cans of diet soda have mean weights that are lower than the mean weight for the regular soda.
C.
Reject
the null hypothesis. There
is not
sufficient evidence to support the claim that the cans of diet soda have mean weights that are lower than the mean weight for the regular soda.
D.
Fail to reject
the null hypothesis. There
is
sufficient evidence to support the claim that the cans of diet soda have mean weights that are lower than the mean weight for the regular soda.
b. Construct a confidence interval appropriate for the hypothesis test in part (a).
nothing
lbless than
mu 1 minus mu 2less thannothing
lb
(Round to three decimal places as needed.)
Does the confidence interval support the conclusion found with the hypothesis test?
▼
No,
Yes,
because the confidence interval contains
▼
Homework Answers
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A data set includes data from student evaluations of courses.
The summary statistics are nequals 91,...
Data on the weights (lb) of the contents of cans of diet soda versus the contents...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. Diet Regular muμ mu 1μ1 mu 2μ2 n 3838 3838...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent si...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. Diet Reqular μ2 26 0.81485 Ib 0.00755 lb 26 0.78439...
B?? Data on the weights (b) of the contents of cans of diet soda versus the...
B??
Data on the weights (b) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. Diet 38 0.78178 lb 0.00443 lb μ2 38 0.80874...
Data on the weights (lb) of the contents of cans of diet soda versus the contents...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete the parts below. Use a 0.05 significance level Test the claim that the contents of cans ol Giet seda have weights with a...
Diet Regular Data on the weights (lb) of the contents of cans of diet soda versus...
Diet Regular Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. Cixon 21 0.78134 lb 0.00443 lb H2 21...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. Diet Regular H2 25 x 25 0.78225 lb .00449 lb...
A data set includes data from student evaluations of courses. The summary statistics are nequals=9393, x...
A data set includes data from student evaluations of courses. The summary statistics are nequals=9393, x overbarxequals=3.453.45, sequals=0.630.63. Use a 0.010.01 significance level to test the claim that the population of student course evaluations has a mean equal to 3.503.50. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? A. Upper H 0H0: muμnot...
A data set includes data from student evaluations of courses. The summary statistics are n=88, X=3:44,...
A data set includes data from student evaluations of courses. The summary statistics are n=88, X=3:44, 5-0.69 Use a 0.05 significance level to test the claim that the population of student course evaluations has a mean equal to 3.50. Assume that a simple random sample has been selected. Identify the nul and alternative hypotheses, test statistic, P.value, and state the final conclusion that addresses the original claim. What are the null and alterative hypotheses? O A. Ho 3.60 OB H:73.50...
A data set includes data from student evaluations of courses. The summary ticaren 38,361,30.58 Use a...
A data set includes data from student evaluations of courses. The summary ticaren 38,361,30.58 Use a 0.10 significance level to test the daim that the population of student course evaluation has a mean equal to 3.75. Assume that a simple random sample has been elected. Identify the null and teave hypotheses, tests and state the final conclusion that addresses the original What are the nut and seative hypotheses? OAH 3.75 OB Mo: 3.75 HR3.75 H>3.75 OCH 3.75 OD #375 H...
A data set includes data from student evaluations of courses. The summary statistics are nequals=8484, x...
A data set includes data from student evaluations of courses. The summary statistics are nequals=8484, x overbarxequals=3.453.45, sequals=0.640.64 .Use a 0.010.01 significance level to test the claim that the population of student course evaluations has a mean equal to 3.503.50. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Determine the test statistic. nothing (Round to two decimal places as needed.)
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. Diet Reqular μ2 26 0.81485 Ib 0.00755 lb 26 0.78439...
B??
Data on the weights (b) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. Diet 38 0.78178 lb 0.00443 lb μ2 38 0.80874...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete the parts below. Use a 0.05 significance level Test the claim that the contents of cans ol Giet seda have weights with a...
Diet Regular Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. Cixon 21 0.78134 lb 0.00443 lb H2 21...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. Diet Regular H2 25 x 25 0.78225 lb .00449 lb...
A data set includes data from student evaluations of courses. The summary statistics are n=88, X=3:44, 5-0.69 Use a 0.05 significance level to test the claim that the population of student course evaluations has a mean equal to 3.50. Assume that a simple random sample has been selected. Identify the nul and alternative hypotheses, test statistic, P.value, and state the final conclusion that addresses the original claim. What are the null and alterative hypotheses? O A. Ho 3.60 OB H:73.50...
A data set includes data from student evaluations of courses. The summary ticaren 38,361,30.58 Use a 0.10 significance level to test the daim that the population of student course evaluation has a mean equal to 3.75. Assume that a simple random sample has been elected. Identify the null and teave hypotheses, tests and state the final conclusion that addresses the original What are the nut and seative hypotheses? OAH 3.75 OB Mo: 3.75 HR3.75 H>3.75 OCH 3.75 OD #375 H...
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