The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006). Do male and female

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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 1 (22.89 KiB) Viewed 16 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 46 male consumers was $132.56, and the average expenditure in a sample survey of 30 female consumers was $62.53. Based on past surveys, the standard deviation for male consumers is assumed to be $33, and the standard deviation for female consumers is assumed to be $14. The 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