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Here's the transcription of the text for educational purposes: --- Jeffrey, as an eight-year-old, established a mean time of 16.43 seconds with a sample standard deviation of 0.8 seconds for swimming the "25-yard freestyle." His dad, Frank, thought that Jeffrey could swim the "25-yard freestyle" faster using a new pair of expensive goggles and timed Jeffrey for 15 swims. Jeffrey’s mean time was 16.0 seconds with a sample standard deviation of 0.8 seconds. Frank thought that the goggles helped Jeffrey swim faster than the 16.43 seconds. Frank's wife is still furious over the wasted money and she is not convinced that the goggles actually make the difference and that the faster speed is just likely a coincidence. Frank is asking you to set up a hypothesis test to prove to his wife that he did NOT waste the money. Conduct a hypothesis test using a preset α = 0.05. --- There are no graphs or diagrams to explain in this image.

Here's the transcription of the text for educational purposes: --- Jeffrey, as an eight-year-old, established a mean time of 16.43 seconds with a sample standard deviation of 0.8 seconds for swimming the "25-yard freestyle." His dad, Frank, thought that Jeffrey could swim the "25-yard freestyle" faster using a new pair of expensive goggles and timed Jeffrey for 15 swims. Jeffrey’s mean time was 16.0 seconds with a sample standard deviation of 0.8 seconds. Frank thought that the goggles helped Jeffrey swim faster than the 16.43 seconds. Frank's wife is still furious over the wasted money and she is not convinced that the goggles actually make the difference and that the faster speed is just likely a coincidence. Frank is asking you to set up a hypothesis test to prove to his wife that he did NOT waste the money. Conduct a hypothesis test using a preset α = 0.05. --- There are no graphs or diagrams to explain in this image.

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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Here's the transcription of the text for educational purposes: --- Jeffrey, as an eight-year-old, established a mean time of 16.43 seconds with a sample standard deviation of 0.8 seconds for swimming the "25-yard freestyle." His dad, Frank, thought that Jeffrey could swim the "25-yard freestyle" faster using a new pair of expensive goggles and timed Jeffrey for 15 swims. Jeffrey’s mean time was 16.0 seconds with a sample standard deviation of 0.8 seconds. Frank thought that the goggles helped Jeffrey swim faster than the 16.43 seconds. Frank's wife is still furious over the wasted money and she is not convinced that the goggles actually make the difference and that the faster speed is just likely a coincidence. Frank is asking you to set up a hypothesis test to prove to his wife that he did NOT waste the money. Conduct a hypothesis test using a preset α = 0.05. --- There are no graphs or diagrams to explain in this image.
Transcribed Image Text:Here's the transcription of the text for educational purposes: --- Jeffrey, as an eight-year-old, established a mean time of 16.43 seconds with a sample standard deviation of 0.8 seconds for swimming the "25-yard freestyle." His dad, Frank, thought that Jeffrey could swim the "25-yard freestyle" faster using a new pair of expensive goggles and timed Jeffrey for 15 swims. Jeffrey’s mean time was 16.0 seconds with a sample standard deviation of 0.8 seconds. Frank thought that the goggles helped Jeffrey swim faster than the 16.43 seconds. Frank's wife is still furious over the wasted money and she is not convinced that the goggles actually make the difference and that the faster speed is just likely a coincidence. Frank is asking you to set up a hypothesis test to prove to his wife that he did NOT waste the money. Conduct a hypothesis test using a preset α = 0.05. --- There are no graphs or diagrams to explain in this image.
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