The human resource manager at a car dealership wants to know if the ages of its employees are related to the department that they work in. Data was compiled and tabulated in a 2-way contingency
The human resource manager at a car dealership wants to know if the ages of its employees are related to the department that they work in. Data was compiled and tabulated in a 2-way
Expected counts are printed below observed counts
Sales Accounts Marketing Repairs Total
20-29 8 10 27 43 88
17.74 *** 26.20 23.62
30-39 29 26 38 22 *
23.18 26.72 34.24 30.86
40-49 33 32 72 82 219
44.15 50.88 65.20 58.77
50-59 81 106 86 54 327
65.92 75.97 97.36 87.75
Total 151 ** 223 201 749
Chi-Sq = 5.348 + **** + 0.024 + 15.912 +
1.459 + 0.019 + 0.413 + 2.544 +
2.816 + 7.003 + 0.709 + 9.182 +
3.448 + 11.875 + 1.325 + 12.983 = 80.395
DF = *****, P-Value = ******
No cells with expected counts less than 5.
a) Name the random variables present in the table above.
b) Carefully define the null and alternative hypotheses of the Chi Square test underlying the generation of the above table.
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