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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

Solutions

Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

A researcher would like to know which factors are most important to people who are buying a new car. A sample of n = 200 customers between the ages of 20 and 29 are asked to identify the most important factor in the decision process:

Performance, Reliability, or Style. The researcher would like to know whether there is a difference between the factors identified by women compared to those identified by men The data are as follows:

  Observed Frequencies of Most Important Factor According to Gender  
  Performance Reliability Style Totals
Male 21 33 26 80
Female 19 67 34 120
Totals 40 100 60  
  • a. State the null hypotheses.
  • b. Determine the value for df for the chi-square test.
  • c. Compute the expected frequencies.

a.

To determine

To find: The null hypothesis for the given information.

Explanation

Given info:

One survey was done on the most important factor to people who are buying car.

  Performance Reliability Style Total
Male 21 33 26 80
Female 19 67

b.

To determine

To find: The value of df for the chi-square test.

c.

To determine

To find: The expected frequencies.

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