17.20 In the survey of Exercise 17.18, the clerical employees in the eight sampled subdivisions were asked

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17.20 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:

Subdivision 1 2 3 4 5 6 7 8 Number satisfied 24 25 11 21 35 44 30 34

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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Essential Mathematics And Statistics For Science

ISBN: 9780470694480

2nd Edition

Authors: Graham Currell, Dr. Antony Dowman

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