6. Successful hotelmanagers must have personality characteristics often thought

Question

6. Successful hotelmanagers must have personality characteristics often thought of asfeminine (such as “compassionate”) as well as thoseoften thought of as masculine (such as “forceful”). TheBem Sex-Role Inventory (BSRI) is a personality test that givesseparate ratings for female and male stereotypes, both on a scaleof 1 to 7. A sample of 148 male general mangers of three-star andfour-star hotels had mean BSRI femininity score Yaverage= 5.29.The meanscore for the general male population is =5.19. Do hotelmanagers on the average differ significantly in femininity scorefrom men in general? Assume that the standard deviation of scoresin the population of all male hotel managers is the same as the=0.78 for the adult male population. 6. Successful hotelmanagers must have personality characteristics often thought of asfeminine (such as “compassionate”) as well as thoseoften thought of as masculine (such as “forceful”). TheBem Sex-Role Inventory (BSRI) is a personality test that givesseparate ratings for female and male stereotypes, both on a scaleof 1 to 7. A sample of 148 male general mangers of three-star andfour-star hotels had mean BSRI femininity score Yaverage= 5.29.The meanscore for the general male population is =5.19. Do hotelmanagers on the average differ significantly in femininity scorefrom men in general? Assume that the standard deviation of scoresin the population of all male hotel managers is the same as the=0.78 for the adult male population.

Explanation / Answer

Assuming you are using a normal curve, the .10 difference isinsignificant, because it is only .1/.78 of a standard deviationaway from the mean, which implies that the data only differs .1282.Since there are 148 males taking the test, multiply the .1282 bythe square root of 148, to get 1.55 standard deviations. This isstill within the generally accepted .95 confidence interval,therefore the variation is insignificant.

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