Question

The null and alternate hypotheses are: H0: μ1 ≤ μ2 H1: μ1 > μ2

A random sample of 27 items from the first population showed a mean of 110 and a standard deviation of 15. A sample of 19 items for the second population showed a mean of 100 and a standard deviation of 6. Use the 0.05 significant level. Find the degrees of freedom for unequal variance test. (Round down your answer to the nearest whole number.) State the decision rule for 0.025 significance level.

A.) Find the degrees of freedom for unequal variance test. (round down to nearest whole number)

B.) State the decision rule for 0.025 significance level. (round answer 3 decimal places)

C.)Compute the value of the test statistic. (round 3 decimal places)

D.) What is your decision regarding the null hypothesis? Use the 0.03 significance level.

Please explain I do not get the steps!!

Answer 1

In that I use Welch's T test.

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