Refer to Exercise 9 6 You want to test H0 2 3 against Ha 2 3 a Find the critical value of used for rejecting H0 b Calculate P(accept H0 when 2 4) c Repeat the calculation of b for 2 3, 2 5, and 2 6 d Use the values of from parts b and c to graph the power curve for the test Exercise 9 6 A random sa...

a bc d Refer to Exercise 96 in which the rejection region was given as z 16 ...

Refer to Exercise 9.6. You want to test H0: = 2.3 against Ha: > 2.3.

Question:

Refer to Exercise 9.6. You want to test H0: µ = 2.3 against Ha: µ > 2.3.
a. Find the critical value of used for rejecting H0.
b. Calculate β = P(accept H0 when µ = 2.4).
c. Repeat the calculation of b for µ = 2.3, 2.5, and 2.6.
d. Use the values of β from parts b and c to graph the power curve for the test.
Exercise 9.6
A random sample of n = 35 observations from a quantitative population produced a mean = 2.4 and a standard deviation s = .29. Suppose your research objective is to show that the population mean m exceeds 2.3.