In the survey of Exercise 17 18 the clerical employees in
In the survey of Exercise 17.18, the clerical employees in the eight sampled subdivisions were asked if they were satisfied with the operation of the bonus plan.
The results obtained are listed in the following table:
a. Find a point estimate of the proportion of all clerical employees satisfied with the bonus plan.
b. Find a 95% confidence interval for this population proportion.
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