Full-time college students report spending a mean of 29 hours per week on academ

Question

Full-time college students report spending a mean of 29 hours per week on academic actvities, both inside and outside the classroom. Assume the standard deviation of time spent on academic activities is 4 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 28 hours per week? 8944 (Round to four decimal places as needed.) b. I you select a random sample of 25 full-time college students there is an 83% chance that the sample mean is less than how many hours per week? 29.76 (Round to two decimal places as needed) c. What assumption must you make in order to solve (a) and (b)? O A. The population is symmetrically distributed, such that the Central Limit Theorem will likely hold for samples of size 25. B. The sample is symmetrically distributed, such that the Central Limit Theorem will likely hold. O C. The population is normally distributed. O D. The population is uniformly distributed.

Explanation / Answer

C) The population is normally Distributed

The above assumption is a standard assumption that has to be made to solve the questions (a), (b)

Here the assumption is, The population is normally distributed with mean 29 hours and standard deviation of 4 hours

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