# Chi-square test and number of breakdowns

A company operates four machines during three shifts each day. From production records, the data in the table below were collected. At the .05 level of significance test to determine if the number of breakdowns is independent of the shift.

Machine

Shift A B C D

1 41 20 12 16

2 31 11 9 14

3 15 17 16 10

https://brainmass.com/statistics/chi-squared-test/chi-square-test-number-breakdowns-265236

#### Solution Preview

Statistics

A company operates four machines during three shifts each day. From production records, the data in the table below were collected. At the .05 level of significance test to determine if the number of breakdowns is independent of the shift.

Machine

Shift A B C D

1 41 20 12 16

2 31 11 9 14

3 15 17 16 10

Answer

H0: The ...

#### Solution Summary

The chi-square test and number of breakdowns are examined.

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