Determine on the basis of the sample data shown in the


Use the formula of Exercise 16 to recalculate χ2 for Example 10.

Exercise 16

Show that the following computing formula for χ2 is equivalent to the formula in Section 7:

Example 10

Determine, on the basis of the sample data shown in the following table, whether the true proportion of shoppers favoring detergent A over detergent B is the same in all three cities:

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Basic Statistics: Determine on the basis of the sample data shown in the
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