Author Question: A sample size of 5 provides a sample mean of 9.6. If the population variance is known to be 5 and ... (Read 146 times)

BRWH · **on:** Jun 24, 2018

A sample size of 5 provides a sample mean of 9.6. If the population variance is known to be 5 and the population distribution is assumed to be normal, the lower limit for a 90 confidence interval is 7.96.

Indicate whether the statement is true or false

Question 2

Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. So, 27 of the possible Z values are smaller than ________.

Fill in the blank(s) with correct word