A research study conducted in 2001 concluded that high school students in the state of Virginia averaged 10.4 hours of exercise a week. Last year, a study of 250 randomly selected students throughout the state found an average of 10.18 hours with a standard deviation of 1.83 hours.Does this provide evidence at a .05 significance level that the average number of hours spent each week exercising by Virginia high school students has dropped?Interpret the p-value in this question.How could a different significance level change your decision in part (a)?If only the sample size changed, would it need to be higher or lower to change your decision in part (a)?

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A research study conducted in 2001 concluded that high school students in the state of Virginia averaged 10.4 hours of exercise a week. Last year, a study of 250 randomly selected students throughout the state found an average of 10.18 hours with a standard deviation of 1.83 hours.

Does this provide evidence at a .05 significance level that the average number of hours spent each week exercising by Virginia high school students has dropped?
Interpret the p-value in this question.
How could a different significance level change your decision in part (a)?
If only the sample size changed, would it need to be higher or lower to change your decision in part (a)?

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