Yvon Hopps ran an experiment to determine the optimum power and time settings for microwave popcorn. His goal was to find a combination of power and time that would deliver high-quality popcorn with less than 10% of the kernels left un-popped, on average. After experimenting with several bags, he determined that power 9 at 4 minutes was the best combination. To be sure that the method was successful, he popped 8 more bags of popcorn (selected at random) at this setting. All were of high quality, with the following percentages of uncooked popcorn: 7.8, 13.7, 9.4, 8.5, 8.4, 5.8, 5.5, 5.2. uncooked kernels? Explain. Does the 90% confidence interval suggest that he met his goal of an average of no more than 10% The 90% confidence interval for the true mean percentage of unpopped kernels is (Round to two decimal places as needed. Use ascending order.) (%, 1%).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
Problem 64E
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Yvon Hopps ran an experiment to determine the optimum power and time settings for microwave popcorn. His goal was to find a combination of power and time that would deliver
high-quality popcorn with less than 10% of the kernels left un-popped, on average. After experimenting with several bags, he determined that power 9 at 4 minutes was the best
combination. To be sure that the method was successful, he popped 8 more bags of popcorn (selected at random) at this setting. All were of high quality, with the following
percentages of uncooked popcorn: 7.8, 13.7, 9.4, 8.5, 8.4, 5.8, 5.5, 5.2. Does the 90% confidence interval suggest that he met his goal of an average of no more than 10%
uncooked kernels? Explain.
The 90% confidence interval for the true mean percentage of unpopped kernels is (%, 1%).
(Round to two decimal places as needed. Use ascending order.)
Transcribed Image Text:= Yvon Hopps ran an experiment to determine the optimum power and time settings for microwave popcorn. His goal was to find a combination of power and time that would deliver high-quality popcorn with less than 10% of the kernels left un-popped, on average. After experimenting with several bags, he determined that power 9 at 4 minutes was the best combination. To be sure that the method was successful, he popped 8 more bags of popcorn (selected at random) at this setting. All were of high quality, with the following percentages of uncooked popcorn: 7.8, 13.7, 9.4, 8.5, 8.4, 5.8, 5.5, 5.2. Does the 90% confidence interval suggest that he met his goal of an average of no more than 10% uncooked kernels? Explain. The 90% confidence interval for the true mean percentage of unpopped kernels is (%, 1%). (Round to two decimal places as needed. Use ascending order.)
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