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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

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 113 employees reveals as following:

Stress Level

Commuting Time High Moderate Low Total

Less than 15 mins 9 5 18 32

In between 15-45 mins 17 8 28 53

More than 45 mins 18 (???) 3 (3.96) 7 28

Total 44 16 53 113

a) Which graph should be used for the study? Give the reason of your choice.

b) Find the expected frequency of the cell indicated by "???" ( Round to two decimal places)

3) Interpret in the context, the expected frequency you obtained in part (b)

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1. 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 113 employees reveals as following: Stress Level Commuting Time High Moderate Low Total Less than 15 mins 9 5 18 32 In between 15-45 mins 17 8 28 53 More than 45 mins 18(???) 3 (3.96) 7 28 Total 44 16 53 113 a ) Which graph should be used for this study? Give the reason of your choice. [2] Graph: Block diagram and Cocostatulation lot in graph ! Reason: Because data is mixed data / Categorical data Commato tame Commutiny time is mixed data (Quantatiny) to Categorical Vodata ) and Cavacoeve stress b ) level is categorical date. So, Block diagram meckl be Find the expected frequency of the cell indicated by "???" (Note: Round to two decimal places). [1] X = 28 113 1132 = 28x49 7 = 28 x 4 4 113 = 1232 113 (?? ? = 10.90) c) Interpret, in the context, the expected frequency you obtained in part (b). [1] If there is no relationship between the commuting time of the employees and the level of stress observe employees having on job, than we expect, 10. 90 high level related problems of stress, who are commuting more than 45 mins Page 2 of 7

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