Exam1solac.SP01

# Exam1solac.SP01 - Spring 2001 Exam 1 Solutions MSCI3710 No...

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Unformatted text preview: Spring 2001 Exam 1 Solutions MSCI3710 No. Solution Version A Version C 1 The correct set of hypothesis for this test is Ho: 1 = 7.3 Ha: 1 ≠17.3 A E 2 Z = (X- μ )/( σ / √ n), (7.2-7.3)/(0.6 / √ 150) = -2.04 Variance is 0.36, so the standard deviation is 0.6 B D 3 The Calculated Value(2.00) is greater than the Critical Value(1.282). Therefore, Reject the null hypothesis, conclude there is sufficient evidence of Ha. D C 4 One tail test with Proportion and Alpha is 0.01 The critical value is 2.33 A D 5 The calculated =1.9 and p-value =0.0287 Therefore, p-value is greater than the alpha. Fail to Reject Ho E B 6 Z = (X- μ )/( σ / √ n), (1900-2000)/(228 / √ 36) = -2.63 A B 7 Two tail test. p-value = (0.5-0.4901)*2=0.0198 B D 8 Reject Ho. There is sufficient evidence of Ha. Therefore, the evidence does not support the broker’s claim. B A 9 One tail test with the alpha =0.1 The critical value =1.28 A C 10 0.79-0.75/( √ (0.79*0.21)/687+(0.75*0.25)/391=1.369 D C 11 (0.211-0.247)± 1.96*((0....
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## This note was uploaded on 03/09/2011 for the course DSC 3710 taught by Professor Staff during the Spring '09 term at North Texas.

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Exam1solac.SP01 - Spring 2001 Exam 1 Solutions MSCI3710 No...

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