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Fighting U.S. Hunger In a poll of 1000 likely voters, 560
Chapter 7, Problem 14(choose chapter or problem)
Fighting U.S. Hunger In a poll of 1000 likely voters, 560 say that the United States spends too little on fighting hunger at home. Find a 95% confidence interval for the true proportion of voters who feel this way. Source: Alliance to End Hunger. 0.529 _ p _ 0.591
Questions & Answers
QUESTION:
Fighting U.S. Hunger In a poll of 1000 likely voters, 560 say that the United States spends too little on fighting hunger at home. Find a 95% confidence interval for the true proportion of voters who feel this way. Source: Alliance to End Hunger. 0.529 _ p _ 0.591
ANSWER:Step 1 of 2
Given:
The sample proportion is the number of successes divided by the sample size:
For confidence level , determine using table (look up 0.025 in the table, the z-score is then the found z-score with opposite sign):