Author Question: If we have calculated a confidence interval and we find that it does NOT include the population ... (Read 143 times)

fbq8i · **on:** Jun 20, 2018

If we have calculated a confidence interval and we find that it does NOT include the population mean,

a. we must have done something wrong in collecting data.
b. our interval was too wide.
c. we made a mistake in calculation.
d. this will happen a fixed percentage of the time.

Question 2

A 95 confidence interval is going to be _______ a 99 confidence interval.

a. narrower than
b. wider than
c. the same width as
d. more accurate than