Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions :
A researcher wants to test if the mean price of houses in an area is greater than $145,000.A random sample of 35 houses selected from the area produces a mean price of $149,700.Assume that $13,100,and that the test is to be made at the 1% significance level.
-What is the critical value of z?

A) 1.88
B) 2.17
C) 1.96
D) 2.58