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Hypothesis testing for difference between two population means
Two independent samples were taken from two populations with the following results:
Sample 1
Sample 2
Sample size = 48
Sample size = 39
Mean = 15
Mean = 11
Population standard deviation = 1.8
Population standard deviation = 2.9
For the hypothesis test: H0 : μ1 - μ2 ≤ 1 H0 : μ1 - μ2 > 1
a. What is the standard error of the difference between the means?
b. What is the value of the test statistic?
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