In a certain town, a random sample of executives have the following personal incomes (in thousands); Assume the population of incomes is normally distributed. Find the 98% confidence interval for the mean income.

See Attached Excel for Data.

income data.xlsx

Question 18 options:

	33.348 < < 52.652
	35.132 < < 50.868
	45.840 < < 48.160
	45.419 < < 57.581
	35.862 < < 50.138

Question 19 (1 point)

A random sample of stock prices per share (in dollars) is shown. Find the 92% confidence interval for the mean stock price. Assume the population of stock prices is normally distributed.

See Attached Excel for Data

stock price data.xlsx

Question 19 options:

	(17.884, 40.806)
	(27.372, 31.318)
	(15.600, 43.090)
	(16.572, 42.118)
	(26.978, 40.464)