6. value: 3.00 points In the book Business Research Methods (5th ed.), Donald R.

ID: 432206 • Letter: 6

Question

value:
3.00 points

In the book Business Research Methods (5th ed.), Donald R. Cooper and C. William Emory discuss studying the relationship between on-the-job accidents and smoking. Cooper and Emory describe the study as follows:

Suppose a manager implementing a smoke-free workplace policy is interested in whether smoking affects worker accidents. Since the company has complete reports of on-the-job accidents, she draws a sample of names of workers who were involved in accidents during the last year. A similar sample from among workers who had no reported accidents in the last year is drawn. She interviews members of both groups to determine if they are smokers or not.

The sample results are given in the following table.

(a) For each row and column total in the above table, find the corresponding row/column percentage. (Round your answers to 2 decimal places.)

(b) For each cell in the above table, find the corresponding cell, row, and column percentages. (Round your answers to 2 decimal places.)

(c) Use the MINITAB output in the above to test the hypothesis that the incidence of on-the-job accidents is independent of smoking habits. Set ? = .01.

(Click to select)Do not rejectReject H0.

(d) Is there a difference in on-the-job accident occurrences between smokers and nonsmokers?

Conclude there is (Click to select)no differencedifference between smokers and nonsmokers.

On-the-Job Accident Smoker Yes No Row Total Heavy 12 5 17 Moderate 9 10 19 Nonsmoker 13 17 30 Column total 34 32 66

Explanation / Answer

Answer:

Row 1

25.76%

Row 2

28.79%

Row 3

45.45%

Column 1

51.52%

Column 2

48.48%

Accident

No Accident

Heavy

Cell= 18.18%

Cell= 7.57%

Row= 70.59%

Row= 29.41%

Column= 35.30%

Column= 15.62%

Moderate

Cell= 13.63%

Cell= 15.15%

Row= 47.37%

Row= 52.63%

Column= 26.47%

Column= 31.25%

Nonsmoker

Cell= 19.70%

Cell= 25.76%

Row= 43.33%

Row= 56.66%

Column= 38.23%

Column= 53.12%

C) The p value comes out to be 0.18 which is greater than 0.05. Thus we accept the null hypothesis.

H0: There is no significant relationship between smoking and on the job accident. or

H0: On the job accidents and smoking are independent on each other.