Answered: Hypothesis test results: µ : Mean of…

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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100%

A data set includes data from

500

random tornadoes. The display from technology available below results from using the tornado lengths (miles) to test the claim that the mean tornado length is greater than

2.5

miles. Use a

0.05

significance level. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.

Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses?

Identify the test statistic.

Identify the P-value

State the final conclusion that addresses the original claim.

_______ H0. There is _______ evidence to support the claim that the mean tornado length is greater than 2.2 miles

Hypothesis test results:
H: Mean of variable
Ho : µ= 2.5
HA : u> 2.5
Sample Mean Std. Err.
3.11913 0.213944 499 2.893888
DF
T-Stat
P-value
Length
0.0020

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