The null and alternate hypothesis is:
H0: µ1≤ µ2
H0: µ1 > µ2
A random sample of 20 items from the first population showed a mean of 100 and a standard deviation of 15. A sample of 16 items for the second population showed a mean of 94 and a standard deviation of 8. Use the .05 significant level.
a. Find the degree of freedom for unequal variance test.
b. State the decision rule for .05 significance level.
c. Compute the value of the test statistic.
d. What is your decision regarding the null hypothesis? Use the .05 significance level.