Which expression is equivalent to 14a4b6c-10
?
8a-2b3c-5
7a2b3
F
4c15
ба?69
c15
7ab3
H
405
J
76²c²
4a?

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