(Solved):   hi please help I am stuck on this part Suppose that the average number of Facebook friends ...

 

hi please help I am stuck on this part

Suppose that the average number of Facebook friends users have is normally distributed with a mean of 115 and a standard deviation of about 50. Assume forty-six individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of ? -N( 115 b. For the group of 46, find the probability that the average number of friends is less than 113. c. Find the third quartile for the average number of Facebook friends. d. For part b), is the assumption that the distribution is normal necessary? No O Yest