Tri-Cities Tobacco Coalition

Tri-Cities Tobacco Coalition - (a Hypothesized p0 Sample...

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(a) 0.2 Sample size 320 Estimated p 0.256 Test statistic 2.516 p-value 0.006 α 0.050 α-level critical value 1.645 Yes since 2.52 > 1.65 (b) 0.200 Sample size 320 Estimated p 0.256 Test statistic 2.516 p-value 0.012 α 0.050 α-level critical value 1.960 -1.960 1-α confidence interval Upper limit 0.300 Lower limit 0.212 95 % confidence interval = (0.21, 0.30)
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