You wish to test the following claim (Ha) at a significance level of a = 0.05. H.: H1 = 42 You believe both populations are normally distributed, but you do not know the standard deviations f either. However, you have reason to believe that the variances of the two populations are equal. You a sample of size nį = 14 with a mean of M1 = first population. You obtain a sample of size n2 = 19 with a mean of M2 of SD2 = 7.4 from the second population. = 67.8 and a standard deviation of SD1 = 15.5 from 61.7 and a standard dev

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Question 7
>
You wish to test the following claim (Ha) at a significance level of a =
0.05.
H.: 41
Ha: µ1 7 42
You believe both populations are normally distributed, but you do not know the standard deviations for
either. However, you have reason to believe that the variances of the two populations are equal. You obtain
a sample of size nį = 14 with a mean of M1
first population. You obtain a sample of size n2
of SD2 = 7.4 from the second population.
= 67.8 and a standard deviation of SD1
19 with a mean of M2
15.5 from the
61.7 and a standard deviation
In the answer box below insert 2.0395 as the critical value for this test. (Report answer accurate to three
decimal places.)
critical value
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
%3D
The test statistic is...
O in the critical region
O not in the critical region
Transcribed Image Text:Question 7 > You wish to test the following claim (Ha) at a significance level of a = 0.05. H.: 41 Ha: µ1 7 42 You believe both populations are normally distributed, but you do not know the standard deviations for either. However, you have reason to believe that the variances of the two populations are equal. You obtain a sample of size nį = 14 with a mean of M1 first population. You obtain a sample of size n2 of SD2 = 7.4 from the second population. = 67.8 and a standard deviation of SD1 19 with a mean of M2 15.5 from the 61.7 and a standard deviation In the answer box below insert 2.0395 as the critical value for this test. (Report answer accurate to three decimal places.) critical value What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = %3D The test statistic is... O in the critical region O not in the critical region
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