In a survey, 12 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $44 and standard deviation of $4. Construct a confidence interval at a 95% confidence level. Give your answers to one decimal place. ±± Interpret your confidence interval in the context of this problem.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
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Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 6CR
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In a survey, 12 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $44 and standard deviation of $4. Construct a confidence interval at a 95% confidence level.

Give your answers to one decimal place.

±±

Interpret your confidence interval in the context of this problem. 

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