random sample of 200 registered voters, 120 indicated they are Democrats. Develop a 95% confidence interval for the proportion of registered voters in the population who are Democrats. a) .5321 to .6679 b) .4321 to .7679 c) .5321 to .9679 d) .4321 to .8679 Use z or t chart if needed and show all wor
random sample of 200 registered voters, 120 indicated they are Democrats. Develop a 95% confidence interval for the proportion of registered voters in the population who are Democrats. a) .5321 to .6679 b) .4321 to .7679 c) .5321 to .9679 d) .4321 to .8679 Use z or t chart if needed and show all wor
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
In a random sample of 200 registered voters, 120 indicated they are Democrats. Develop a 95% confidence interval for the proportion of registered voters in the population who are Democrats.
a) .5321 to .6679
b) .4321 to .7679
c) .5321 to .9679
d) .4321 to .8679
Use z or t chart if needed and show all work.
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