1. In order to estimate the difference between the yearly incomes of marketing m

Question

1. In order to estimate the difference between the yearly incomes of marketing managers in the East and West of the United States, the following information was gathered. East West n1 = 40 n2 = 45 = 72 (in $1,000) = 78 (in $1,000) s1 = 6 (in $1,000) s2 = 8 (in $1,000) df=80 a. What is the point estimate of the difference between the two population means? b. At 90 % confidence, what is the margin of error? c. What is the 90 % confidence interval for the difference between the two population means? d. Use p-value approaches to test to determine if the average yearly income of marketing managers in the East is significantly different from the West. Use =0.10

Explanation / Answer

this question is solved already by one of our experts

please check below link

http://www.chegg.com/homework-help/questions-and-answers/1-order-estimate-difference-yearly-incomes-marketing-managers-east-west-united-states-foll-q8613549

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.