Question

Consider the following hypothesis test:

H_0: μ = 22

H_{a :} μ ≠ 22

A sample of 75 is used and the population standard deviation is 10. Compute the p-value and state your conclusion for each of the following sample results. Use α = 0.01. Round z value to two decimal places and p-value to four decimal places. Enter negative values as negative numbers.

a. x̄ = 23

z value: _______

p-value: _______

b. x̄ = 25.1

z value: _______

p-value: _______

c: x̄ = 20

z value: _______

p-value: _______

Answer 1