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Chapter 7, Section 2, Exercise 031

Find the expected count and the contribution to the

chi-square statistic for the (Group 1, No) cell in the two-way table below.

Yes No Total

Group 1 55 43 98

Group 2 138 60 198

Group 3 67 24 91

Total 260 127 387

Round your answer for the excepted count to one decimal place, and your answer for the contribution to the chi-square statistic to three decimal places.

Expected count=

contribution to the chi-square statistic=

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