I'm unclear on how to do this.

You wish to test the following claim (Ha) at a significance level of=0.05 Ho:=87.5 Ha:<87.5 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of sizen=63with meanx=79.7 and a standard deviation ofs=14.8. A)What is the test statistic for this sample?Round 3 decimal places. test statistic = B)What is the p-value for this sample?Round 4 decimal places. p-value =

C)Is the p=value less than (or equal to) or greater than ? D)This test statistic leads to a decision to...

• reject the null
• accept the null
• fail to reject the null

E) As such, the final conclusion is that:

• 1)There is sufficient evidence to warrant rejection of the claim that the population mean is less than 87.5.
• 2)There is not sufficient evidence to warrant rejection of the claim that the population mean is less than 87.5.
• 3)The sample data support the claim that the population mean is less than 87.5.
• 4)There is not sufficient sample evidence to support the claim that the population mean is less than 87.5.