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The USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 41 male consumers was $135.67. and the average expenditure in a sample survey of 40 female consumers was $68.64. Based on past surveys, the standard deviation for male consumers is assumed to be $37, and Exercise 10.27 Algorithmic: Not Answered tne tmuuru uCnutionnvnmnurC coNsumers IS assumed to be $21. 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). Use z-table.

The USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 41 male consumers was $135.67. and the average expenditure in a sample survey of 40 female consumers was $68.64. Based on past surveys, the standard deviation for male consumers is assumed to be $37, and Exercise 10.27 Algorithmic: Not Answered tne tmuuru uCnutionnvnmnurC coNsumers IS assumed to be $21. 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). Use z-table.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 41 male consumers was $135.67. and the average expenditure in a sample survey of 40 female consumers was $68.64. Based on past surveys, the standard deviation for male consumers is assumed to be $37, and Exercise 10.27 Algorithmic: Not Answered tne tmuuru uCnutionnvnmnurC coNsumers IS assumed to be $21. 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). Use z-table.
Transcribed Image Text:The USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 41 male consumers was $135.67. and the average expenditure in a sample survey of 40 female consumers was $68.64. Based on past surveys, the standard deviation for male consumers is assumed to be $37, and Exercise 10.27 Algorithmic: Not Answered tne tmuuru uCnutionnvnmnurC coNsumers IS assumed to be $21. 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). Use z-table.
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