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Suppose you're interested in studying if men spend differently then women on average for Valentine's Day in the United States. To do this you randomly sample 41 men and 101 women from across the US and record how much they spend for Valentine's Day. You find that the men spend an average of 202 dollars with a standard deviation of 200 dollars while the women spend an average of 120 dollars with a standard deviation of 150 dollars. Look back at Question 4. Build and interpret a 95% confidence interval for the average amount spent by US women for Valentine's Day.

Suppose you're interested in studying if men spend differently then women on average for Valentine's Day in the United States. To do this you randomly sample 41 men and 101 women from across the US and record how much they spend for Valentine's Day. You find that the men spend an average of 202 dollars with a standard deviation of 200 dollars while the women spend an average of 120 dollars with a standard deviation of 150 dollars. Look back at Question 4. Build and interpret a 95% confidence interval for the average amount spent by US women for Valentine's Day.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose you're interested in studying if men spend differently then women on average for Valentine's Day in the United States. To do this you randomly sample 41 men and 101 women from across the US and record how much they spend for Valentine's Day. You find that the men spend an average of 202 dollars with a standard deviation of 200 dollars while the women spend an average of 120 dollars with a standard deviation of 150 dollars. Look back at Question 4. Build and interpret a 95% confidence interval for the average amount spent by US women for Valentine's Day.
Transcribed Image Text:Suppose you're interested in studying if men spend differently then women on average for Valentine's Day in the United States. To do this you randomly sample 41 men and 101 women from across the US and record how much they spend for Valentine's Day. You find that the men spend an average of 202 dollars with a standard deviation of 200 dollars while the women spend an average of 120 dollars with a standard deviation of 150 dollars. Look back at Question 4. Build and interpret a 95% confidence interval for the average amount spent by US women for Valentine's Day.
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