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Assume that Friday morning taxi-cab rides have times with a standard deviation of a = 9.9 minutes. A cab driver records times of rides during a Friday afternoon time period and obtains these statistics: n=16, x= 17.9 minutes, s= 13.2 minutes. Use a 0.10 significance level to test the claim that these Friday afternoon times have greater variation than the Friday morning times. Assume that the sample is a simple random sample selected from a normally distributed population. C... Let o denote the population standard deviation of Friday afternoon cab-ride times. Identify the null and alternative hypotheses. Ho: a = 9.9 H₁:09.9 (Type integers or decimals. Do not round.) Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value.

Assume that Friday morning taxi-cab rides have times with a standard deviation of a = 9.9 minutes. A cab driver records times of rides during a Friday afternoon time period and obtains these statistics: n=16, x= 17.9 minutes, s= 13.2 minutes. Use a 0.10 significance level to test the claim that these Friday afternoon times have greater variation than the Friday morning times. Assume that the sample is a simple random sample selected from a normally distributed population. C... Let o denote the population standard deviation of Friday afternoon cab-ride times. Identify the null and alternative hypotheses. Ho: a = 9.9 H₁:09.9 (Type integers or decimals. Do not round.) Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value.

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
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Assume that Friday morning taxi-cab rides have times with a standard deviation of o = 9.9 minutes. A cab driver records times of rides during a Friday afternoon time period and obtains these statistics: n = 16, x= 17.9 minutes, s = 13.2 minutes. Use a 0.10 significance level to test the claim that these Friday afternoon times have greater variation than the Friday morning times. Assume that the sample is a simple random sample selected from a normally distributed population. Let o denote the population standard deviation of Friday afternoon cab-ride times. Identify the null and alternative hypotheses. Ho: o = 9.9 H₁: < 9.9 (Type integers or decimals. Do not round.) Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value. (Round to three decimal places as needed.) State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. the null hypothesis. There sufficient evidence to the claim that the Friday afternoon cab-ride times have greater variation than the Friday morning times.
Transcribed Image Text:Assume that Friday morning taxi-cab rides have times with a standard deviation of o = 9.9 minutes. A cab driver records times of rides during a Friday afternoon time period and obtains these statistics: n = 16, x= 17.9 minutes, s = 13.2 minutes. Use a 0.10 significance level to test the claim that these Friday afternoon times have greater variation than the Friday morning times. Assume that the sample is a simple random sample selected from a normally distributed population. Let o denote the population standard deviation of Friday afternoon cab-ride times. Identify the null and alternative hypotheses. Ho: o = 9.9 H₁: < 9.9 (Type integers or decimals. Do not round.) Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value. (Round to three decimal places as needed.) State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. the null hypothesis. There sufficient evidence to the claim that the Friday afternoon cab-ride times have greater variation than the Friday morning times.
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