Exam1solbd.SP01

Exam1solbd.SP01 - Spring 2001 Exam1 Solutions MSCI3710 No....

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Spring 2001 Exam1 Solutions MSCI3710 No. Solution Version B Version D 1 The correct set of hypothesis for this test is Ho: Φ = 6.9 Ha: Φ ≠ 6.9 E A 2 Z = (X- μ )/( σ / n), (6.8-6.9)/(0.7 / 160) = -1.81 Variance is 0.49, so the standard deviation is 0.7 D A 3 The Calculated Value(2.50) is greater than the Critical Value(1.282). Therefore, Reject the null hypothesis, conclude there is sufficient evidence of Ha. C D 4 One tail test with Proportion and Alpha is 0.05 The critical value is 1.645 C E 5 The calculated value =2.08 and the critical value =1.645 Therefore, the calculated value is greater than the critical value. Reject Ho A A 6 Z = (X- μ )/( σ / n), (1700-1800)/(196 / 55) = -3.78 A A 7 Two tail test. p-value = (0.5-0.4946)*2=0.0108 D B 8 Reject Ho. There is sufficient evidence of Ha. Therefore, the evidence does not support the broker’s claim. A D 9 One tail test with the alpha =0.05 The critical value =1.645 D B 10 0.79-0.75/( (0.79*0.21)/687+(0.75*0.25)/391=1.369
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Exam1solbd.SP01 - Spring 2001 Exam1 Solutions MSCI3710 No....

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