A large corporation is interested in determining whether a relationship exists b

Question

A large corporation is interested in determining whether a relationship exists between the commuting time of its employees and the level of stress-related problems observed on the job. A study of 120 workers reveals the data in the accompanying table. Complete parts (a) and (b) below.

Use the table of critical values for chi-square distributions.

a. At the 0.01 level of significance, is there evidence of a relationship between commuting time and stress level?

State the null and alternative hypotheses to test.

H0:___

H1:___

Explanation / Answer

Here,

H0: there is no relationship between commuting time and level of stress related problems i.e. commuting time and the stress level of the workers is independent.

H1: there is association or relationship between commuting time and level of stress.

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