Is the Hartford survey indicating the percentage of believing in unfair distribution higher than the national average at a significance level of 0.05? What is the P-value for the Hartford survey? What is the minimum value of fraction believing in unfair distribution at a significance level of 0.05?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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Sixty percent of the Americans are found to believe that business profits are distributed unfairly. A survey of 40 people in Hartford indicate that 28 people believe in unfair distribution of the business profits.

  1. Is the Hartford survey indicating the percentage of believing in unfair distribution higher than the national average at a significance level of 0.05?
  2. What is the P-value for the Hartford survey?
  3. What is the minimum value of fraction believing in unfair distribution at a significance level of 0.05?
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