Question

1.) A random sample of ten households in College Park revealed they generated a mean of 10.91 pounds of garbage per week with a standard deviation of 4.736 pounds. Construct the 80% confidence interval to estimate the mean amount of garbage all College Park households generate per week

2.)Suppose National Collegiate Athletic Association [NCAA] rules state all student-athletes are to receive an average of 50 hours of academic support, per term. A random sample of 49 University of Maryland student-athletes revealed a mean of 47.5 hours of academic support per term. If the calculated value for the associated test statistic equaled -1.75, what was the standard deviation of the number of hours of academic support the student-athletes in the sample received per term?

3.) To test whether all University of Maryland undergraduate students studied fewer than 3 hours per week, on average, during the fall 2019 semester, B. Frese collected data for a random sample of 51 UMD undergraduate students. If the population standard deviation is unknown and the calculated value for the associated test statistic equals -2.6778, determine the p-VALUE for the test

Answer 1