Full-time college students report spending a mean of 31 hours per week on academic?activities, both inside and outside the classroom. Assume the standard deviation of time spent on academic activities is 5 hours. Complete parts?(a) through?(d) below.

Full-time college students report spending a mean of 31 hours per week on academic activities. both inside and outside the classroom, Assume the standard deviation of time spent on academic activities is 5 hours Complete parts (a) through (d) below. a. If you select a random sample of 25 full-time college students. what is the probability that the mean time spent on academic activities is at least 30 hours per week? (Round to four decimal places as needed.)