Question

A random sample of 20 employees was collected from Jain University, to estimate the average daily time they spent on social media. Suppose that the population times have a normal distribution with a mean of 95 minutes and a standard deviation of 23 minutes.

a. Find the probability that the sample mean is fewer than 108 minutes. (answer in three decimal places)

b. What is the probability that the sample mean is more than 87 minutes and fewer than 100 minutes? (answer in three decimal places)

Answer 1

Answer:

sorry I don't know but happy chhoti holi

Answer 2

Answer:

Hello dear…!!!

Step-by-step explanation:

How are you?