You wish to test the following claim (Ha) at a significance level of α=0.001.

Ho:μ=84.9

Ha:μ>84.9

You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=25 with a mean of M=89.9 and a standard deviation of SD=10.4.

What is the critical value for this test? (Report answer accurate to three decimal places.)

critical value = ???

What is the test statistic for this sample? (Report answer accurate to three decimal places.)

test statistic = ???

The test statistic is…?????

- in the critical region
- not in the critical region

This test statistic leads to a decision to…???

- reject the null
- accept the null
- fail to reject the null

Incorrect

As such, the final conclusion is that…???

- There is sufficient evidence to warrant rejection of the claim that the population mean is greater than 84.9.
- There is not sufficient evidence to warrant rejection of the claim that the population mean is greater than 84.9.
- The sample data support the claim that the population mean is greater than 84.9.
- There is not sufficient sample evidence to support the claim that the population mean is greater than 84.9.