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The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006). Do male and female
Posted: Wed Dec 08, 2021 4:55 am
by answerhappygod
- The Average Expenditure On Valentine S Day Was Expected To Be 100 89 Usa Today February 13 2006 Do Male And Female 1 (41.13 KiB) Viewed 111 times
The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006). Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 60 male consumers was $137.08, and the average expenditure in a sample survey of 34 female consumers was $60.37. Based on past surveys, the standard deviation for male consumers is assumed to be $30, and the standard deviation for female consumers is assumed to be $18. The z value is 2.576. Round your answers to 2 decimal places. a. What is the point estimate of the difference between the population mean expenditure for males and the population mean expenditure for females? b. At 99% confidence, what is the margin of error? c. Develop a 99% confidence interval for the difference between the two population means. to