Question

Given: C[-2 less than or equal to (ux - uy) less than or equal to +12]...

Given: C[-2 less than or equal to (ux - uy) less than or equal to +12] = .95.

(a) What is X - Y?

(b) If H0: ux - uy = 0 is tested at a = .05 using a nondirectional alternative, what is the outcome?

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Answer #1

Solution:-

According to the given statement 95% confidence interval for the difference in the ux - uy is (- 2, + 12).

a) The value of X - Y is + 5.

b) Since the confidence interval contains 0, hence we failed to reject the null hypothesis.

H0: ux - uy = 0

HA: ux - uy 0

According to the given statement 95% confidence interval for the difference in the ux - uy is (- 2, + 12).

Since the confidence interval contains 0, hence we failed to reject the null hypothesis.

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