Ans:
Expected number of college professors aged 61-65 to retire=218*170/482=76.89
Expected number of attorneys aged 56-60 to retire=115*155/482=36.98
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.
Research is conducted regarding the average age at retirement for three career groups. To test whether...
Find the indicated probability. 23) The following contingency table provides joint people by career and retirement. age at retirement.eS a joint frequency distribution for a group of retired 25) Age at Retirement 50-55 56-60 61-65 Over 65 Total Attorney 96 40 191 Career College Professor 11 32 92 34169 C2 Secretary 21 4563 49 178 Store Clerk 18 44 70 50 182 Total Suppose one of these people is selected at random. Compute P(A2 or C3). A) 0.062 B) 0.481...