Suppose we are interested in determining the average amount of money students spend on car maintenance every year.If we obtained 120 SRS of size 100 and constructed an 80% confidence interval for each SRS,we would expect ______ of the confidence intervals to contain the true population mean.
A)96
B)80
C)20
D)24

Question

Quizplus · Accepted Answer

By definition, an 80% confidence interval means that we expect 80% of the confidence intervals constructed from repeated sampling to contain the true population mean. Since we have 120 SRS, 80% of 120 is 96.

Suppose We Are Interested in Determining the Average Amount of Money