Question

study of the effect of college student employment on academic performance, the following summary statistics for GPA were reported for a sample of students who worked and for a sample of students who did not work. The samples were selected at random from working and nonworking students at a university. (Use a statistical computer package to calculate the P-value. Use μ_employed − μ_{not employed}. Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.)

Sample
SizeMean
GPAStandard
DeviationStudents Who
Are Employed1723.120.475Students Who
Are Not Employed1143.230.524

t= df= P=
Does this information support the hypothesis that for students at this university, those who are not employed have a higher mean GPA than those who are employed? Use a significance level of 0.05.

YesNo    

Answer 1