Question

c. Determine the p-value in (a) and interpret its meaning. The test statistic gives a p-value of . (Type an integer or a decimal. Round to three decimal places as needed.) Interpret the meaning of the p-value in (a). Choose the correct answer below. A. The p-value is the probability of obtaining a sample mean difference at least as extreme as this one if the population mean ratings for the two brands are the same. B. The p-value is the probability of obtaining a sample mean difference less extreme than this one if the population mean ratings for the two brands are the same. C. The p-value is the probability of failing to reject the null hypothesis when it is actually false. d. Construct a 95% confidence interval estimate of the difference in the mean ratings between the two brands. Recall that ?D = ?1 - ?2, where ?1 is the mean rating for brand A and ?2 is the mean rating for brand B. The 95% confidence interval estimate is ? ?D ? __. (Type integers or decimals. Round to two decimal places as needed.) 2: Data Table Expert Brand A Brand B C.C. 24 26 S.E. 25 25 E.G 18 19 B.I. 24 26 C.M. 19 22 C.N. 25 26 G.N. 26 25 R.M. 24 26 P.V. 21 22 (1) does not fall between / falls between (2) reject / do not reject (3) insufficient / sufficient

          c. Determine the p-value in (a) and interpret its meaning.
The test statistic gives a p-value of ______.
(Type an integer or a decimal. Round to three decimal places as needed.)
Interpret the meaning of the p-value in (a). Choose the correct answer below.
A. The p-value is the probability of obtaining a sample mean difference at least as extreme as this one if the population mean ratings for the two brands are the same.
B. The p-value is the probability of obtaining a sample mean difference less extreme than this one if the population mean ratings for the two brands are the same.
C. The p-value is the probability of failing to reject the null hypothesis when it is actually false.
d. Construct a 95% confidence interval estimate of the difference in the mean ratings between the two brands. Recall that ?D = ?1 - ?2, where ?1 is the mean rating for brand A and ?2 is the mean rating for brand B.
The 95% confidence interval estimate is ______ ? ?D ? ______.
(Type integers or decimals. Round to two decimal places as needed.)
2: Data Table
Expert Brand A Brand B
C.C. 24 26
S.E. 25 25
E.G 18 19
B.I. 24 26
C.M. 19 22
C.N. 25 26
G.N. 26 25
R.M. 24 26
P.V. 21 22
(1) does not fall between / falls between (2) reject / do not reject (3) insufficient / sufficient

Added by Walter H.

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