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Consider the following hypothesis test:
H0: μ ≤ 12
Ha: μ > 12
A sample of 25 provided a sample mean x = 14 and a sample standard deviation s = 4.32.
a. Compute the value of the test statistic (to 2 decimals)
Answer the next three questions using the critical value approach.
c. Using α = .05, what is the critical value for the test statistic? (to 3 decimals)
d. State the rejection rule: Reject H0 if t is _______________ the critical value.
e. Using α = .05, can you conclude that the population mean is greater than 12?
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