A cost accountant wishes to establish the average amount, , ...

[kodithompson]

A cost accountant wishes to establish the average amount,  , spent by executives per day on travel and lodging. Then a comparison, between the average and the amount turned in to be reimbursed, will be made and unreasonably high or low expense amounts audited. A random sample of 50 executive expense receipts is taken. The average in the sample was 208 . From a similar survey the standard deviation of the amounts is approximately  = 29 . The accountant prepares a 90-percent confidence level for . What is the confidence interval? ___________________ _ to ___________________ _
 Fill in the blank(s) with correct word

Question 2

Determine the limits of the 75 confidence interval for , given that n = 90; x = 50; and  = 12. ___________________ _ to ___________________ _
 Fill in the blank(s) with correct word

[Briannahope]

Answer to Question 1

201.25; 214.75

Answer to Question 2

48.5; 51.5

[kodithompson]

Excellent

[Zebsrer]

Gracias!