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Category > Accounting Posted 20 May 2017 My Price 5.00

The average expenditure on Valentine's Day was expected to be $100.89

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 44 male consumers was $135.67, and the average expenditure in a sample survey of 34 female consumers was $68.64. Based on past surveys, the standard deviation for male consumers is assumed to be $39, and the standard deviation for female consumers is assumed to be $24

a) What is the point estimate of the difference between the population mean expenditure for males and the population mean expenditure for females (to 2 decimals)?

b) At 99% confidence, what is the margin of error (to 2 decimals)?

c) Develop a 99% confidence interval for the difference between the two population means (to 2 decimals).

 
 

Answers

Alpha Geek
(8)
Status NEW Posted 20 May 2017 03:05 PM My Price 5.00

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Attachments

file 1495295637-1544209_1_636307999459334621_Sampling-Distributions-difference.xlsx preview (264 words )
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