Saccharin and Sucralose are compared with respect to their effect on body weight. The weight change was observed over a 12 week period and the following results were obtained. Assume normal distributions for both samples and unequal variances. Test the null hypothesis that the means are equal against the alternative that they are not using a 5% significance level. The value of the test statistic and the decision are Group Saccharin Sucralose n 25 24 ○ 2.60; reject the null hypothesis O 0.43 do not reject the null hypothesis O 2.02, reject the null hypothesis 0.53 do not reject the null hypothesis sample mean 1.17 -0.84 sample standard deviation 2.56 2.84
Saccharin and Sucralose are compared with respect to their effect on body weight. The weight change was observed over a 12 week period and the following results were obtained. Assume normal distributions for both samples and unequal variances. Test the null hypothesis that the means are equal against the alternative that they are not using a 5% significance level. The value of the test statistic and the decision are Group Saccharin Sucralose n 25 24 ○ 2.60; reject the null hypothesis O 0.43 do not reject the null hypothesis O 2.02, reject the null hypothesis 0.53 do not reject the null hypothesis sample mean 1.17 -0.84 sample standard deviation 2.56 2.84
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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Transcribed Image Text:Saccharin and Sucralose are compared with respect to their effect on body weight.
The weight change was observed over a 12 week period and the following results
were obtained. Assume normal distributions for both samples and unequal variances.
Test the null hypothesis that the means are equal against the alternative that they
are not using a 5% significance level. The value of the test statistic and the decision
are
Group
Saccharin
Sucralose
n
25
24
2.60; reject the null hypothesis
0.43 do not reject the null hypothesis
2.02, reject the null hypothesis
0.53 do not reject the null hypothesis
sample mean
1.17
-0.84
sample standard
deviation
2.56
2.84
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