A study compared the grade point averages (GPAS) of 50 high school seniors with a TV in their

A study compared the grade point averages (GPAS) of 50 high school seniors with a TV in their bedroom with the GPAS of 50 high school seniors without a TV in their bedrooms. The results are shown in Table 10.9. The alternative is that the mean GPA is greater for the group with no TV in their bedroom. Give the value of the test statistic assuming no difference in mean GPAs. Give the p-value and your conclusion for α = 0.05 and for α = 0.10.

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TV in Bedroom

No TV in Bedroom

n

50

50

Mean

2.58

2.77

Std. dev

0.55

0.65