The null and alternate hypotheses are:
H0: µ1 = ≤µ2
H1: 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) Determine the number of degrees of freedom,
(b) State the decision rule,
(c) Compute the value of the test statistic, and
(d) State your decision about the null hypothesis.
Solution:
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