6. to the nearest percentage point, the margin of error for this survey is?

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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a survey of folk music fans yields 95% confidence interval estimate of the proportion of fans who love the music of david wilcox: 0.74 to 0.86. to the nearest percentage point, the margin of error for this survey is?

Expert Solution
Step 1

Given:

Lower limit = 0.74

Upper limit = 0.86

The point estimate can be calculated as:

Point estimate (Sample proportion) = (Upper limit +lower limit )/2 = (0.74 + 0.86)/2 = 0.8 

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