In: Statistics and Probability
5. The following data on running backs and wide receivers in the NFL over the course of a set of years is provided: Position Running Back Wide Receiver Sample Size 381 533 Average Weight 213 201 Population Standard Deviation 14 15 a. What is the 98% confidence interval for the difference in weight between running backs and wide receivers? b. What is the test statistic for testing to see if there is a significant difference in weight between running backs and wide receivers?