7 Two employees, \(A\) and \(B\), both produce the same toy for a company.
The company records the total number of errors made per day by each employee during a 40-day period. The results are summarised in the following table.
Employee
| Number of errors made per day |
| 0 | 1 | 2 | 3 or more | Total |
| \(A\) | 8 | 10 | 20 | 2 | 40 |
| B | 18 | 4 | 15 | 3 | 40 |
| Total | 26 | 14 | 35 | 5 | 80 |
The company claims that there is an association between employee and number of errors made per day.
7
- Test the company's claim, using the \(5 \%\) level of significance.
7 - By considering observed and expected frequencies, interpret in context the association between employee and number of errors made per day.
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