Today reports that the average expenditure on Valentine's Day was expected to be $100.89Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 48 male consumers was 134.33, and the average expenditure in a sample survey of 33 female consumers was $67.04Based on past surveys, the standard deviation for male consumers is assumed to be $31and the standard deviation for is assumed to 20. The is 2.576 Round your answers to 2 decimal places What is the estimate of the difference between the population mean expenditure for males and the population mean expenditure for females? At 99% confidence , what is the margin of error? Develop a 99% confidence interval for the difference between the two population means to
Today reports that the average expenditure on Valentine's Day was expected to be $100.89Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 48 male consumers was 134.33, and the average expenditure in a sample survey of 33 female consumers was $67.04Based on past surveys, the standard deviation for male consumers is assumed to be $31and the standard deviation for is assumed to 20. The is 2.576 Round your answers to 2 decimal places What is the estimate of the difference between the population mean expenditure for males and the population mean expenditure for females? At 99% confidence , what is the margin of error? Develop a 99% confidence interval for the difference between the two population means to
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