Please give step by step explanations.

A statistician randomly sampled n observations from a normal distribution with population standard deviation of 17, and found x = 103. Assume that the null and alternative hypothesis are given by

H0 := 110 v.s. Ha : < 110

Give the range of all possible values of n for which the statistician will reject the null hypothesis at the significance level = 0.1003.

Question 50 options:

n 7

n 8

n 9

n 10