Question

Incorrect Answers are highlighted in Red.

Problem 4. ANSWERS ONLY CHECKED --ANSWERS NOT RECORDED (1 point) Do you believe that the average age of executives from large corporations is exceedingly old? It is believed the average age of the working public is 40.1 with a standard deviation of 2.43, if a survey of 309 chief executive officers of large corporations finds that the sample average age to be less than 39.9 or more than 40.3, serious suspicion will be raised about the average age of executives What is the minimum number out of this 309 that would make you question that the average age of CEO's is too high? Answer = | 12453 What is the maximum number out of this 309 that would make you question that the average age of CEO's is too low? Answer 112 Find the absolute value of the critical values in terms of the standard normal scale, Z. Enter your answer to at least three decimal places. 1.44678 What level of α was used here? Enter your answer to at least three decimal places. α- 0.14796 If the actual average age of executives of large corporations is found to be 40.078, then what is the probability that our sample would have lead us to believe the average age of CEO's was too high? Use at least three digits Answer 0.995

Answer 1

he given..confidlence.. ioeais minumumnumber.w..30g that the axerage ageofCEis too high. 203) 2-43/J309 909 P 7144673) table

2 Masimum_number out of this 30g that vexage age .of cEos is too lo 3og RĂX.ч 399-401 忌 309 R, X〈39.9) In 2-43) 509 302, PLe 〈-1.44678 oO.OZ^J 4L6ZS 2.43 J3 E 4678 5〉 Χ-40.078- O.O 67 Гц.3.JT 05.. ioe8 5〉 - XE 40, 078 1-d0 1263 0.873