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 = 12, x=20.9 minutes, s = 12.6 minutes. Use a 0.01 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. 17.82 (Round to two decimal places as needed.) Identify the P-value. C (Round to three decimal places as needed.)
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 = 12, x=20.9 minutes, s = 12.6 minutes. Use a 0.01 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. 17.82 (Round to two decimal places as needed.) Identify the P-value. C (Round to three decimal places as needed.)
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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