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Research is conducted regarding the average age at retirement for three career groups. To test whether there is a relationshi

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Expected number of college professors aged 61-65 to retire=218*170/482=76.89\approx 77

Expected number of attorneys aged 56-60 to retire=115*155/482=36.98\approx 37

Test statistic:

Chi square=8.2528

df=(3-1)*(3-1)=4

p-value=CHIDIST(8.2528,4)=0.0827

As,p-value>0.05,we fail to reject the null hypothesis.

we will not reject the null hypothesis.

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