A survey of 36 randomly selected iPhone owners showed that the purchase price has a mean of

Question:

A survey of 36 randomly selected “iPhone” owners showed that the purchase price has a mean of $416 with a sample standard deviation of $180.
a. Compute the standard error of the sample mean.
b. Compute the 95% confidence interval for the mean.
c. How large a sample is needed to estimate the population mean within $10?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: