Consider the following hypothesis test Ho: μ1=μ2 Ha: μ1#μ2 The following results are for two independent samples taken from the two populations. Sample 1 Sample 2 n1 = 80 n2 = 70 sample 1 mean = 104 s1 = 8.4 a. What is the sampling variance for the sample 1 mean? Notice that I am asking for the sampling (not sample) value 0.882 b. What is the sampling variance for the sample 2 mean? 0.825 sample 2 mean = 106 s2 = 7.6 c. What is the sampling standard deviation for the difference between the two sample means? 1.3065

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Consider the following hypothesis test
Ho: μ1=μ2
Ha: μ1#µ2
The following results are for two independent samples taken from the two populations.
Sample 1
Sample 2
n1 = 80
n2 = 70
sample 1 mean = 104
sample 2 mean = 106
s2 = 7.6
s1 = 8.4
a. What is the sampling variance for the sample 1 mean? Notice that I am asking for the
sampling (not sample) value
0.882
b. What is the sampling variance for the sample 2 mean?
0.825
c. What is the sampling standard deviation for the difference between the two sample
means?
1.3065
d. At the .05 significance level, is there a difference in the means of two populations?
No, they are not statistically different
Transcribed Image Text:Consider the following hypothesis test Ho: μ1=μ2 Ha: μ1#µ2 The following results are for two independent samples taken from the two populations. Sample 1 Sample 2 n1 = 80 n2 = 70 sample 1 mean = 104 sample 2 mean = 106 s2 = 7.6 s1 = 8.4 a. What is the sampling variance for the sample 1 mean? Notice that I am asking for the sampling (not sample) value 0.882 b. What is the sampling variance for the sample 2 mean? 0.825 c. What is the sampling standard deviation for the difference between the two sample means? 1.3065 d. At the .05 significance level, is there a difference in the means of two populations? No, they are not statistically different
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