Let o denote the population standard deviation of Friday afternoon cab-ride times. Identify the null and alternative hypotheses.Ho: a VH₁:0(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. Theresufficient evidence tothe claim that the Friday afternoon cab-ride times have greater variation than Assume that Friday morning taxi-cab rides have times with a standard deviation of a = 10.1 minutes. A cab driver records times of rides during a Friday afternoon time periodand obtains these statistics: n=14, x= 19.8 minutes, s= 12.6 minutes. Use a 0.10 significance level to test the claim that these Friday afternoon times have greater variationthan the Friday morning times. Assume that the sample is a simple random sample selected from a normally distributed population.

From the provided information, Sample size (n) = 14 Sample standard deviation (s) = 12.6 Level of…

Answered: Assume that Friday morning taxi-cab…

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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Assume that Friday morning taxi-cab rides have times with a standard deviation of = 10.4 minutes. A cab driver records times of rides during a Friday afternoon time period and obtains these statistics: n = 11, x=20.4 minutes, s= 13.1 minutes. Use a 0.05 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: G H₁: o (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…
A researcher decides to measure anxiety in group of bullies and a group of bystanders using a 23-item, 3 point anxiety scale. Assume scores on the anxiety scales are normally distributed and the variance among the group of bullies and bystanders are the same. A group of 30 bullies scores an average of 21.5 with a sample standard deviation of 10 on the anxiety scale. A group of 27 bystanders scored an average of 25.8 with a sample standard deviation of 8 on the anxiety scale. You do not have any presupposed assumptions whether bullies or bystanders will be more anxious so you formulate the null and alternative hypothesis based on that.

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