Two independent samples of respective sizes 12 and 11, respective means 99 and 113, and respective standard deviations 10 and 6, were selected from two normal populations with equal variances. Need to test the null hypothesis that the two population means are equal versus they are different. Based on these two samples, we can conclude the following about this test at a = 0.1
Two independent samples of respective sizes 12 and 11, respective means 99 and 113, and respective standard deviations 10 and 6, were selected from two normal populations with equal variances. Need to test the null hypothesis that the two population means are equal versus they are different. Based on these two samples, we can conclude the following about this test at a = 0.1
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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![Two independent samples of respective sizes 12 and 11, respective
means 99 and 113, and respective standard deviations 10 and 6,
were selected from two normal populations with equal variances.
Need to test the null hypothesis that the two population means are
equal versus they are different. Based on these two samples, we
can conclude the following about this test at a = 0.1
O a. the value of the test statistic is 1.67904 and the the cut-off
value is 1.725, so we accept HO
O b. the value of the test statistic is 2.11826 and the the cut-off
value is 1.28 , so we accept HC
O c. the value of the test statistic is 2.11826 and the the cut-off
value is 1.64 , so we reject HO
O d. None of these
O e. the value of the test statistic is 1.67904 and the the cut-off
value is 1.323 , so we reject H0](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F563e207a-df37-4367-957c-46fc9c3bd1ef%2F30b4f535-9b3b-4755-b8ac-bf5afe1d682f%2Fu3f25fg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Two independent samples of respective sizes 12 and 11, respective
means 99 and 113, and respective standard deviations 10 and 6,
were selected from two normal populations with equal variances.
Need to test the null hypothesis that the two population means are
equal versus they are different. Based on these two samples, we
can conclude the following about this test at a = 0.1
O a. the value of the test statistic is 1.67904 and the the cut-off
value is 1.725, so we accept HO
O b. the value of the test statistic is 2.11826 and the the cut-off
value is 1.28 , so we accept HC
O c. the value of the test statistic is 2.11826 and the the cut-off
value is 1.64 , so we reject HO
O d. None of these
O e. the value of the test statistic is 1.67904 and the the cut-off
value is 1.323 , so we reject H0
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