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8-2 (Testing a Claim about a Proportion) 1) Manuel reads a newspaper article, which claims that internet privacy is of s
Posted: Tue Jul 05, 2022 9:56 am
by answerhappygod
- 8 2 Testing A Claim About A Proportion 1 Manuel Reads A Newspaper Article Which Claims That Internet Privacy Is Of S 1 (36.19 KiB) Viewed 12 times
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8-2 (Testing a Claim about a Proportion) 1) Manuel reads a newspaper article, which claims that internet privacy is of significant concern to more than 20% of Americans. He wants to test this claim and hires the Gallup Organization, headquartered in Lincoln, Nebraska, to conduct a poll. The poll revealed that 22% of the 843 randomly selected adults said that internet privacy was of significant concern. Use a 0.04 significance level to test the newspaper claim. State the null and alternative hypotheses. a) Ho: p = 20% Ha: p + 20% b) Ho:p s 20% Ha: p > 20% 2) See problem #1. Find the critical value. a) 1.75 b)-2.05 3) See problem #1. Calculate the test statistic. a)-1.41 b) 1.75 Ho:p < 20% Ha: p≥20% c)-1.75 c) 2.05 Ho:p ≥ 20% Ha: p < 20% d) 2.05 d) 1.41
4) See problem #1. Calculate the pvalue. a) 0.2195 b) 0.0789 c) 0.0790 d) 0.2000