Marketing Research – MKTG 3650

Exam 3 – 27 June 1998

Answer the following questions. Use 8½by 11 inch paper. Clearly label your answers. Show all of your work. Each question is worth 10 points. You have 45 minutes for the exam.

A study was done concerning automotive repair. You have been asked to write the section dealing with gender as it relates to maintenance of automobiles and highway breakdowns. Obviously, you intend to use gender as the predictor variable. You will also perform all statistical tests (in the report and on this exam) at the 5% level of significance. Tables are shown on the following pages.

  1. You expected to find 60 percent males and 40 percent females (but that’s not what you got). Test this hypothesis in two different ways (two different statistical tests).
  1. Verify that the Chi-Square value for Gender by Breakdown really is .198 (show your work/calculations).
  1. Edit the tables to show/reflect exactly what you would include in the final report. Edit so a typist could simply retype the final tables.
  1. Write a few sentences interpreting each table that you intend to include in the report. That is, write what you would say in the report.
  1. Write a little summary at the end, indicating what the overall pattern tells you about gender, maintenance, and breakdowns.

Has your car had a breakdown?

Frequency / Percent / Valid Percent / Cumulative Percent
Valid / Yes / 36 / 24.2 / 24.2 / 24.2
No / 113 / 75.8 / 75.8 / 100.0
Total / 149 / 100.0 / 100.0

What was the cost of repair?

Frequency / Percent / Valid Percent / Cumulative Percent
Valid / Under $100 / 6 / 4.0 / 16.7 / 16.7
$100 to $250 / 18 / 12.1 / 50.0 / 66.7
$251 to $500 / 9 / 6.0 / 25.0 / 91.7
Over $500 / 3 / 2.0 / 8.3 / 100.0
Total / 36 / 24.2 / 100.0
Missing / System / 113 / 75.8
Total / 149 / 100.0

Do you perform routine maintenance?

Frequency / Percent / Valid Percent / Cumulative Percent
Valid / Seldom / 63 / 42.3 / 42.3 / 42.3
Sometimes / 58 / 38.9 / 38.9 / 81.2
On schedule / 28 / 18.8 / 18.8 / 100.0
Total / 149 / 100.0 / 100.0

Do you change the oil?

Frequency / Percent / Valid Percent / Cumulative Percent
Valid / Seldom / 28 / 18.8 / 18.8 / 18.8
Sometimes / 68 / 45.6 / 45.6 / 64.4
On schedule / 53 / 35.6 / 35.6 / 100.0
Total / 149 / 100.0 / 100.0

What is your gender?

Frequency / Percent / Valid Percent / Cumulative Percent
Valid / Male / 76 / 51.0 / 51.0 / 51.0
Female / 73 / 49.0 / 49.0 / 100.0
Total / 149 / 100.0 / 100.0

What is your gender? * Has your car had a breakdown?

Has your car had a breakdown? / Total
Yes / No
Gender? / Male / Count / 15 / 61 / 76
% within What is your gender? / 19.7% / 80.3% / 100.0%
% within Has your car had a breakdown? / 41.7% / 54.0% / 51.0%
Female / Count / 21 / 52 / 73
% within What is your gender? / 28.8% / 71.2% / 100.0%
% within Has your car had a breakdown? / 58.3% / 46.0% / 49.0%
Total / Count / 36 / 113 / 149
% within What is your gender? / 24.2% / 75.8% / 100.0%
% within Has your car had a breakdown? / 100.0% / 100.0% / 100.0%
Value / df / Asymp. Sig. (2-sided)
Pearson Chi-Square / 1.657 / 1 / .198

What is your gender? * What was the cost of repair?

What was the cost of repair? / Total
Under $100 / $100 to $250 / $251 to $500 / Over $500
Gender? / Male / Count / 4 / 10 / 1 / 15
% within What is your gender? / 26.7% / 66.7% / 6.7% / 100.0%
% within What was the cost of repair? / 66.7% / 55.6% / 11.1% / 41.7%
Female / Count / 2 / 8 / 8 / 3 / 21
% within What is your gender? / 9.5% / 38.1% / 38.1% / 14.3% / 100.0%
% within What was the cost of repair? / 33.3% / 44.4% / 88.9% / 100.0% / 58.3%
Total / Count / 6 / 18 / 9 / 3 / 36
% within What is your gender? / 16.7% / 50.0% / 25.0% / 8.3% / 100.0%
% within What was the cost of repair? / 100.0% / 100.0% / 100.0% / 100.0% / 100.0%
Value / df / Asymp. Sig. (2-sided)
Pearson Chi-Square / 8.571 / 3 / .036

What is your gender? * Do you perform routine maintenance?

Do you perform routine maintenance? / Total
Seldom / Sometimes / On schedule
Gender? / Male / Count / 39 / 26 / 11 / 76
% within What is your gender? / 51.3% / 34.2% / 14.5% / 100.0%
% within Do you perform routine maintenance? / 61.9% / 44.8% / 39.3% / 51.0%
Female / Count / 24 / 32 / 17 / 73
% within What is your gender? / 32.9% / 43.8% / 23.3% / 100.0%
% within Do you perform routine maintenance? / 38.1% / 55.2% / 60.7% / 49.0%
Total / Count / 63 / 58 / 28 / 149
% within What is your gender? / 42.3% / 38.9% / 18.8% / 100.0%
% within Do you perform routine maintenance? / 100.0% / 100.0% / 100.0% / 100.0%
Value / df / Asymp. Sig. (2-sided)
Pearson Chi-Square / 5.420 / 2 / .067

What is your gender? * Do you change the oil?

Do you change the oil? / Total
Seldom / Sometimes / On schedule
Gender? / Male / Count / 20 / 36 / 20 / 76
% within What is your gender? / 26.3% / 47.4% / 26.3% / 100.0%
% within Do you change the oil? / 71.4% / 52.9% / 37.7% / 51.0%
Female / Count / 8 / 32 / 33 / 73
% within What is your gender? / 11.0% / 43.8% / 45.2% / 100.0%
% within Do you change the oil? / 28.6% / 47.1% / 62.3% / 49.0%
Total / Count / 28 / 68 / 53 / 149
% within What is your gender? / 18.8% / 45.6% / 35.6% / 100.0%
% within Do you change the oil? / 100.0% / 100.0% / 100.0% / 100.0%
Value / df / Asymp. Sig. (2-sided)
Pearson Chi-Square / 8.510 / 2 / .014