Towers Perrin, a New York human resources consulting firm, conducted a survey of

Question

Towers Perrin, a New York human resources consulting firm, conducted a survey of 1100 employees at medium-sized and larger companies to determine how dissatisfied employees were with their jobs.The response are posted in the excel file (Ch 08 data, on Job tab). A response of "Yes" indicates the employee strongly disliked the current work experience. a. What is the point estimate of the proportion of the population of employees who strongly dislike their current work experience (to 2 decimals)? Answer 0.43 b. At 95% confidence, what is the margin of error (to 4 decimals)? Answer c. What is the 95% confidence interval for the proportion of the population of employees who strongly dislike their current work experience (to 4 decimals)? ( Answer 0.4007 , Answer 0.4593 ) d. Employers may anticipate Answer turnover costs if employee dissatisfaction remains at the current level

Explanation / Answer

a) point estimate = X/ n = 473/1100 = 0.43

b)

margin of error = z*sqrt(pq/n)

1.96* sqrt( 0.43*0.57/1100) = 0.0293

c) 95 % confince interval =

(0.43 -0.0293, 0.43+0.0293)

=(0.4007,0.4593)

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