You wish to test the following claim (Ha) at a significance level of=0.02.

Ho:=55.1

Ha:55.1

You believe the population is normally distributed and you know the standard deviation is=18.4. You obtain a sample mean ofM=48.5

for a sample of sizen=53.

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

test statistic =___________

What is the p-value for this sample? (Report answer accurate to four decimal places.)

p-value =_____________

The p-value is...

• less than (or equal to)
• greater than

This test statistic leads to a decision to...

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

As such, the final conclusion is that...

• There is sufficient evidence to warrant rejection of the claim that the population mean is not equal to 55.1.
• There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 55.1.
• The sample data support the claim that the population mean is not equal to 55.1.
• There is not sufficient sample evidence to support the claim that the population mean is not equal to 55.1.