|Proctored Nonproctored A study was done on proctored and nonproctored tests. The results are shown in the table. 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. H1 H2 n 31 33 75.85 85.31 10.29 19.01
|Proctored Nonproctored A study was done on proctored and nonproctored tests. The results are shown in the table. 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. H1 H2 n 31 33 75.85 85.31 10.29 19.01
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
3/
a. Test the claim that the contents of cans of diet soda have weights with a mean that is less than the mean for the regular soda.
What are the null and alternative hypotheses?
The test statistic, t,
The P-value is
State the conclusion for the test.
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.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.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.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).
Does the confidence interval support the conclusion found with the hypothesis test?

Transcribed Image Text:A study was done on proctored and nonproctored tests. The results are shown in the
table. 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.
Proctored Nonproctored
H1
H2
31
33
75.85
85.31
S
10.29
19.01
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