Chapter 12 Problem # 13.docx

# Chapter 12 Problem # 13.docx - Chapter 12 Problem 13 Part(a...

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Chapter 12 Problem # 13 Part (a) Observed Frequencies Health Insurance Size of Company Yes No Total Small 36 14 50 Medium 65 10 75 Large 88 12 100 Total 189 36 225 Expected Frequencies Health Insurance Size of Company Yes No Total Small 42 8 50 Medium 63 12 75 Large 84 16 100 Total 189 36 225 Chi Square Health Insurance Size of Company Yes No Total Small .86 4.50 5.36 Medium .06 .33 .39 Large .19 1.00 1.19 X 2 = 6.94 Degrees of freedom = (3-1) (2-1) = 2 Using the X 2 table with degree of freedom = 2, X 2 = 6.94 shows the p-value is between .025 and .05.

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