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. Pvalue = 0.002 996 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. Pvalue = 0.652 997. 1. The variable of interest is failures of an electroni...
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 Spring '09
 KAILASHKAPUR
 Statistics, 1 j, calculated test statistic

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