mont4e_sm_ch09_sec08

# P value 085 9 46 9 95 1 the variable of interest is

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Unformatted text preview: riable of interest is statistics grades and OR grades. 2. H0: Statistics grades are independent of OR grades. 3. H1: Statistics and OR grades are not independent. 4. = 0.01 5. The test statistic is: = 2 0 r c (O ij - Eij ) 2 i =1 j =1 Eij 6. The critical value is 2 2 0 > 0.01,9 = 21.665 2 7. The calculated test statistic is 0 = 25.55 2 .01, 9 8. Therefore, reject H0 and conclude that the grades are not independent at = 0.01. P-value = 0.002 9-96 1. The variable of interest is characteristic among deflections and ranges. 2. H0: Deflection and range are independent. 3. H1: Deflection and range are not independent. 4. = 0.05 5. The test statistic is: = 2 0 r c (O ij - Eij ) 2 i =1 j =1 Eij 6. The critical value is 2 2 0 > 0.05, 4 / = 9.488 2 7. The calculated test statistic is 0 = 2.46 2 0.05 , 4 8. , do not reject H0 and conclude that the evidence is not sufficient to claim that the data are not independent at = 0.05. P-value = 0.652 9-97. 1. The variable of interest is failures of an electroni...
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