lab 5 - EXST 7005 Fall 2010 Lab #5: Alternative Methods to...

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EXST 7005 Fall 2010 Lab #5: Alternative Methods to Test Hypotheses Besides PROC TTEST, there are other methods available for testing hypotheses about a single sample mean, for example, we can calculate t-value by hand and then find the corresponding p- value in a t-table. In SAS, we can test hypotheses about a single sample mean by using PROC UNIVARIATE and PROC MEANS. Example The data shown in the table below relates to the effectiveness of a new brand of insecticide. Location 1 2 3 4 5 6 7 8 9 10 # Dead 88 93 85 77 80 91 89 82 95 84 1000 insects of a particular species were put into a chamber and exposed to an insecticide for 15 seconds at 10 different locations. The response is the number of dead insects. If the average number of dead insects from these locations is larger than 82, the insecticide can be considered effective. Does the data show effectiveness of the insecticide? Test using significance level of α = 0.05. Proc Univariate
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lab 5 - EXST 7005 Fall 2010 Lab #5: Alternative Methods to...

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