Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

AutoWrecks, Inc. sells auto insurance. AutoWrecks keeps close tabs on its customers' driving records, updating its rates according to the trends indicated by these records.

AutoWrecks, Inc. sells auto insurance. AutoWrecks keeps close tabs on its customers' driving records, updating its rates according to the trends indicated by these records. AutoWrecks' records indicate that, in a "typical" year, roughly 70% of the company's customers do not commit a moving violation, 10% commit exactly one moving violation, 15% commit exactly two moving violations, and 5% commit three or more moving violations. This past year's driving records for a random sample of 150 AutoWrecks customers are summarized by the first row of numbers in the table below. That row gives this year's observed frequency for each moving violation category for the sample of 150 AutoWrecks customers. The second row of numbers gives the frequencies expected for a sample of 150 AutoWrecks customers if the moving violations distribution for this year is the same as the distribution for a "typical" year. The bottom row of numbers contains the following value for each of the moving violation categories.Fill in the missing values in the table. Round your responses for the expected frequencies to two or more decimal places. Round your (fO-fE)2/fE responses to three or more decimal places.*** part d is not pictures. Please answer: can we reject the hypothesis that there is no difference between this years moving violation distribution and the distribution in a "typical" year? Yes or no? Please include the type of test statistic and the degree of freedom!

image text in transcribed
No Exactly one Exactly two Three or more 4 3 'X :5 I? violations violation violations violations .. ' ' Observed frequency fa Expected frequency fa 0 01(5): fr: Part 2 Answer the following to summarize the W that there is no difference between this yeafs moving violation distribution and the distribution in a 'typlcai" year. Use the 0.10 WEE for the test. to] Determine the type oflggmto use. Wpe of test statistic: (Choose one) V (in Find the value of the test statistic. (Round your answer to two or more decimal places.) D (c) Find the m. (Round your answer to three or more decimal places.)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Linear Algebra With Applications

Authors: Jeffrey Holt

2nd Edition

1319057691, 9781319057695

More Books

Students also viewed these Mathematics questions

Question

The role of life: It consists of your own service to yourself.

Answered: 1 week ago