Your statistics instructor believes that students who attend our exam review lec

Question

Your statistics instructor believes that students who attend our exam review lectures are likely to have higher exam grades. To test this hypothesis, she randomly samples the exam grades of 10 students who attended the lectures and compares them to the exam grades of 10 randomly selected students who did not attend lecture. Student who attended the exam review lectures have an average exam grade of 92%, and students who did not attend the exam review lectures have an average exam grade of 82%. She conducts an independent groups t-test and obtains a t-value of 5, leading to rejection of the null hypothesis based on an alpha level of 0.05.

Write a sentence describing these results. Make sure to format your results sentence appropriately.

Explanation / Answer

Since the null hypothesis is rejected we can conclude that there is enough evidence to claim that students who attend our exam review lectures are likely to have higher exam grades.

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