Suppose a company takes a random sample of its casual and full-time employees and asks them to anonymously report whether they feel valued, with the results summarised in the table below:
Feel valued |
Do not feel valued |
Total |
|
Full-time |
38 |
17 |
55 |
Casual |
24 |
27 |
51 |
Total |
62 |
44 |
106 |
Based on the SPSS output from a chi-squared test of independence presented below, what is the value of the test statistic?
0.021 |
||
5.330 |
||
4.422 |
||
5.291 |
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Answer:
Observed values are
Feel valued | Do not feel valued | Total | |
Full-time | 38 | 17 | 55 |
Casual | 24 | 27 | 51 |
Total | 62 | 44 | 106 |
Expected values are
Feel valued | Do not feel valued | Total | |
Full-time | 32.1698113 | 22.8301887 | 55 |
Casual | 29.8301887 | 21.1698113 | 51 |
Total | 62 | 44 | 106 |
= 1.056615+1.48886+ 1.139487+ 1.60564 = 5.291
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