8 2 Testing A Claim About A Proportion 1 Manuel Reads A Newspaper Article Which Claims That Internet Privacy Is Of S 1 (22.42 KiB) Viewed 12 times
8 2 Testing A Claim About A Proportion 1 Manuel Reads A Newspaper Article Which Claims That Internet Privacy Is Of S 2 (24.49 KiB) Viewed 12 times
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 ≤ 20% Ha: p > 20% x = 0.04 P=843 Ho:p < 20% Ho:p ≥20% Ha: p≥ 20 %) Ha: p < 20%
9) See problem #1. State the non-technical conclusion. a) There is sufficient evidence to warrant rejection of the claim that internet privacy is of significant concern to more than 20% of Americans. b) There is not sufficient evidence to warrant rejection of the claim that internet privacy is of significant concern to more than 20 % of Americans. c) The sample data support the claim that internet privacy is of significant concern to more than 20% of Americans. d) There is not sufficient sample evidence to support the claim that internet privacy is of significant concern to more than 20% of Americans.
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