Author Question: The following sample was taken from a normally distributed population: 20, 27, 15, 20, 16, 22, and ... (Read 55 times)

mynx · **on:** Jun 24, 2018

The following sample was taken from a normally distributed population: 20, 27, 15, 20, 16, 22, and 13. A 95 confidence interval for the population mean using this sample is:

A) 19 5.603
B) 19 2.201
C) 19 8.804
D) 19 4.402

Question 2

The 30th percentile, P30, is a value such that at most 30 of the data are smaller in value than P30 and at most 70 of the data are larger.

Indicate whether the statement is true or false