In a random sample of four mobile devices the mean repair

Last updated: 3/2/2023

In a random sample of four mobile devices the mean repair cost was 70 00 and the standard deviation was 13 50 Assume the population is normally distributed and use a t distribution to find the margin of error and construct a 90 confidence interval for the population mean Interpret the results The 90 confidence interval for the population mean u is 0 Round to two decimal places as needed