38. The graph represents the linear relationship between the number of books Layla has read and the number of months she has been a member of a book club. Books per Month Number of Books Read uav 4 لا لا لا 5 1 2 3 Number of Months in the Book Club CL Which of these statements is supported by the rate of change in this relationship?

Arandom sample of 45 observations results in a sample mean of 68. the population standard deviation is known to be 23 a. compute the margin of error at a 959% confidence interval. b. compute the 95% confidence interval for the population mean c. compute the 90% confidence interval for the population mean. d. compute the 75% confidence interval for the population mean