The number of hours spent watching television by students in the week before final exams has a

Question:

The number of hours spent watching television by students in the week before final exams has a normal with a standard deviation of 4.5 hours. A random sample of 30 students was taken.
a. Is the probability more than 0.95 that the sample standard deviation exceeds 3.5 hours?
b. Is the probability more than 0.95 that the sample standard deviation is less than 6 hours? Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...