Question

A study regarding the relationship between age and the amount of pressure sales personnel feel in relation to their jobs revealed the following sample information. At the 0.01 significance level, is there a relationship between job pressure and age?

	Degree of Job Pressure
Age (years)	Low	Medium	High
Less than 25	20	24	41
25 up to 40	32	49	69
40 up to 60	30	63	89
60 and older	58	87	99

State the decision rule. Use 0.01 significance level. (Round your answer to 3 decimal places.)

H₀: Age and pressure are not related.

H₁: Age and pressure are related.

Compute the value of chi-square. (Round your answer to 3 decimal places.)

What is your decision regarding H₀?

Answer 1

Decision rule = Reject the Ho if Test stats > = ( 16.812)

Critical value = CHISQ.INV.RT(0.01,DF =6) = 16.812

DF = (#rows-1)(#column-1)= 2*3 =6

Rows: Age (years)   Columns: Worksheet columns

	Low	Medium	High	All
Less than 25	20	24	41	85
Expected count	18.00	28.68	38.32
25 up to 40	32	49	69	150
Expected count	31.77	50.61	67.62
40 up to 60	30	63	89	182
Expected count	38.55	61.40	82.05
60 and older	58	87	99	244
Expected count	51.68	82.32	110.00
All	140	223	298	661

and so on for others
     

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So, Fail to reject Ho