The perimeter of a rectangular pool is more than 62 meters, and the width is at least 10 meters less than the length. which system of inequalities represents the possible length in meters, l, and the possible width in meters, w, of the pool? w ≤ 10 – l 2l + 2w ≥ 62 w ≤ 10 – l 2l + 2w > 62 w ≤ l – 10 2l + 2w ≥ 62 w ≤ l – 10 2l + 2w > 62

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