Question
Suppose that the Secretary of the Interior of the Bogot District believes that the degree of satisfaction with salary in economists is equal to the
Suppose that the Secretary of the Interior of the Bogot District believes that the degree of satisfaction with salary in economists is equal to the degree of satisfaction with salary in doctors in the city. Suppose, furthermore, that previous studies show that the average degree of satisfaction with salary in physicians is 80, and that in order to determine that of economists, a sample of the scores on the degree of satisfaction given in Table 1 was taken With a significance level of 0.05 and assuming that the scores of the degree of satisfaction with the salary of economists are normally distributed with a standard deviation of 15.3 Test the hypothesis of the Secretary of the Interior regarding the degree of satisfaction with the salary between doctors and economists in the city.
TABLE 1. DEGREE OF SATISFACTION BY PROFESSION | ||||||||
ADMINISTRATOR | ACCOUNTANT | ECONOMIST | ||||||
WORK | SALARY | PROMOTION | WORK | SALARY | PROMOTION | WORK | SALARY | PROMOTION |
72 | 57 | 40 | 71 | 49 | 58 | 84 | 53 | 63 |
90 | 62 | 66 | 84 | 74 | 37 | 87 | 66 | 49 |
84 | 42 | 66 | 72 | 37 | 86 | 72 | 59 | 79 |
85 | 56 | 64 | 63 | 48 | 78 | 88 | 55 | 52 |
71 | 45 | 68 | 84 | 60 | 29 | 74 | 70 | 51 |
88 | 49 | 42 | 73 | 56 | 55 | 85 | 89 | 46 |
72 | 60 | 45 | 94 | 60 | 52 | 79 | 59 | 41 |
88 | 36 | 47 | 90 | 27 | 67 | 69 | 47 | 16 |
77 | 60 | 75 | 72 | 7 | 37 | 90 | 56 | 23 |
64 | 43 | 61 | 86 | 37 | 59 | 77 | 90 | 51 |
71 | 75 | 74 | 86 | 72 | 72 | 71 | 36 | 55 |
81 | 28 | 62 | 95 | 66 | 52 | 75 | 53 | 92 |
70 | 38 | 54 | 65 | 42 | 68 | 76 | 51 | 54 |
87 | 51 | 57 | 82 | 37 | 54 | 89 | 80 | 64 |
74 | 59 | 82 | 82 | 60 | 56 | |||
89 | 66 | 62 | 90 | 76 | 70 | |||
85 | 57 | 67 | 78 | 52 | 72 | |||
74 | 47 | 63 | ||||||
82 | 49 | 91 |
Seleccione una:
a. Resultado No concluyentes
b. Probabilidad nula
c. se rechaza la hipotesis nula en favor de la hipotesis alternativa, es decir, de acuerdo con los resultados, los economistas parecen tener en promedio, un grado de satisfaccion diferente al de los medicos de la ciudad en lo que tiene que ver con sus salarios.
d. Se rechaza la hipotesis nula en favor de la hipotesis alterna, es decir, de acuerdo con los resultados, los economistas No parecen tener en promedio, un grado de satisfaccion diferente al de los medicos de la ciudad en lo que tiene que ver con sus salarios.
e. Se rechaza la hipotesis alternativa en favor de la hipotesis nula, es decir, de acuerdo con los resultados, los economistas parecen tener en promedio, un grado de satisfaccion diferente al de los medicos de la ciudad en lo que tiene que ver con sus salarios.
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