The use of cellular phones in automobiles has increased dramatically in the last few years. Of concern to traffic experts, as well as to manufacturers of cellular phones, is the effect on accident rates. Is someone who is using a cellular phone more likely to be involved in a traffic accident? What is your conclusion from the following sample information? Use the 0.05 significance level. Had Accident in the Last YearDid Not Have an Accident in the Last YearUses a cell phone33271Does not use a cell phone51424 Click here for the Excel Data File H0: There is no relationship between phone use and accidents.H1: There is a relationship between phone use and accidents. a. State the decision rule using 0.05 significance level. (Round your answer to 3 decimal places.)b. Compute the value of chi-square. (Round your answer to 3 decimal places.)

If calculated chi-square< critical value of chi-square then we fail to reject null hypothesis and…

Answered: The use of cellular phones in…

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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The use of cellular phones in automobiles has increased dramatically in the last few years. Of concern to traffic experts, as well as to manufacturers of cellular phones, is the effect on accident rates. Is someone who is using a cellular phone more likely to be involved in a traffic accident? What is your conclusion from the following sample information? Use the 0.05 significance level.

	Had Accident in the Last Year	Did Not Have an Accident in the Last Year
Uses a cell phone	33	271
Does not use a cell phone	51	424

Click here for the Excel Data File

H₀: There is no relationship between phone use and accidents.
H₁: There is a relationship between phone use and accidents.

a. State the decision rule using 0.05 significance level. (Round your answer to 3 decimal places.)

b. Compute the value of chi-square. (Round your answer to 3 decimal places.)

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