Abel is carving a rectangular pyramid clock out of green quartz. The length of the rectangular base is 14 cm and the height of the clock is 9 cm. If the clock needs to have a volume of 168 cm³, what is the width of the clock’s base?

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