A company operates three machines during three shifts each day. From production records, the data in...
A company operates three 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.
| Shift | Machine | ||
| A | 46 | 11 | 13 |
| B | 37 | 10 | 11 |
| 3 | 20 | 15 | 16 |
What is the Expected Count for Shift = 2 and Machine = A?
A. 33.374
B. 11.665
C. 12.961
D. 40.279
Homework Answers
| A | B | C | Total | |
| 1 | 46 | 11 | 13 | 70 |
| 2 | 37 | 10 | 11 | 58 |
| 3 | 20 | 15 | 16 | 51 |
| Total | 103 | 36 | 40 | 179 |
Expected frequencies = (Row total* Column Total) /Grand Total.
Therefore,
=33.374
|
The Expected Count for Shift = 2 and Machine = A is 33.374 A. 33.374 |
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