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Softa [21]
3 years ago
6

Consider the hypothesis test H0: μ1= μ2 against H1: μ1.Suppose that the sample sizes aren1 = 15 and n2 =μ2. Assume thatσ21 = σ22

andthat the data are drawn from normal distributions. Use α =0.05.
(a) Test the hypothesis and find the P-value.

(b) Explain how the test could be conducted with a confidenceinterval.

(c) What is the power of the test in part (a) for a truedifference in means of 3?

(d) Assuming equal sample sizes, what sample size should beused to obtain β = 0.05 if the true difference in means is -2?Assume that α = 0.05.

Mathematics
1 answer:
torisob [31]3 years ago
8 0

Answer:

see attachments

Step-by-step explanation:

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