You want to see if the average grade for nontraditional age students is less than the average grade for traditional age students. You believe both populations are normally distributed, but you do not...

You want to see if the average grade for nontraditional age students is less than the average grade for traditional age students.



You believe both populations are normally distributed, but you do not know the standard deviations for either. You obtain the following two samples of data.

Use a significance level of 0.050.05 to answer the following.

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


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