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 9% of the kemels 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: 6.3, 11, 8.5, 5.7, 4.7, 4, 4.3, 4.2. Does the 95% confidence interval suggest that he met his goal of an average of no more than 9% uncooked kernels? Explain. The 95% confidence interval for the true mean percentage of unpopped kernels is (%. %). (Round to two decimal places as needed. Use ascending order.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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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 9% of the kemels 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: 6.3, 11, 8.5, 5.7, 4.7, 4, 4.3, 4.2. Does the 95% confidence interval suggest that he met his goal
of an average of no more than 9% uncooked kernels? Explain.
The 95% confidence interval for the true mean percentage of unpopped kernels is (%, %).
(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 9% of the kemels 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: 6.3, 11, 8.5, 5.7, 4.7, 4, 4.3, 4.2. Does the 95% confidence interval suggest that he met his goal of an average of no more than 9% uncooked kernels? Explain. The 95% confidence interval for the true mean percentage of unpopped kernels is (%, %). (Round to two decimal places as needed. Use ascending order.)
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