.11 AT&T; 10:27 AM elearning.utdallas.edu between 0.01 and 0.05. ·At = 0.05, we

Question

.11 AT&T; 10:27 AM elearning.utdallas.edu between 0.01 and 0.05. ·At = 0.05, we would not reject Ho. Chapter 27 Example Example In a study CO ducte in ng ana, oss and Mulligan ( 01!ected data on height and whether or not the student had ever been bullied in school for 209 students. A student was categorized as short if he or she was below the third percentile for height. The following table displays a contingency table of the data: Ever bullied Yes No Total short 42 50 92 not short18 4 92 Total 60 24 184 Chapter 27 Example Clicker question #47 What is the expected cell count for the "short-yes cell? a. 184-46 b. 3.33 18 c. 92x60 d. 184 4.38 Chapter 27

Explanation / Answer

This is the case of a Chi Squared goodness of fit test, and in this contingency table, the expected value of a cell is calculated by multiplying the row total with the column total for that particular cell, and dividing the result with the grand total.

So the correct answer is:

(60 X 92)/184 = 30

Hope this helps !

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