Ateacher writes two rules on the board.
rule x: add 3 and the starting number is 0
rule y: add 15 and the starting number is 0
which ordered pair fits the rules?
a. (3,18)
b (4,16)
c (12,50)
d (18,90)

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