# Question

The following data give the observed frequencies of errors per page of unread page proofs for a sample of 40 pages from a certain journal publisher.

Errors/ Page Observed Frequencies

0…………………………….. 5

1…………………………….. 9

2…………………………….. 5

3…………………………….. 7

4…………………………….. 4

5…………………………….. 2

6…………………………….. 3

7…………………………….. 2

8…………………………….. 1

9…………………………….. 0

10…………………………… 2

Conduct a test to determine whether the errors per page follow a Poisson distribution with a mean rate of 3.2. Use a = .10.

Errors/ Page Observed Frequencies

0…………………………….. 5

1…………………………….. 9

2…………………………….. 5

3…………………………….. 7

4…………………………….. 4

5…………………………….. 2

6…………………………….. 3

7…………………………….. 2

8…………………………….. 1

9…………………………….. 0

10…………………………… 2

Conduct a test to determine whether the errors per page follow a Poisson distribution with a mean rate of 3.2. Use a = .10.

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