The population mean proportion is .80. We decide to sample the population by randomly selecting 40 items
Question:
The population mean proportion is .80. We decide to sample the population by randomly selecting 40 items and computing sample proportions.
a. Can we use the normal distribution to approximate the distribution of sample proportions? Why?
b. What is the standard error of this distribution?
c. Applying the empirical rule, approximately 95% of sample proportions are between what values?
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a Yes we can use the normal distribution to approximate the distribution of sample proportions The c...View the full answer
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Related Book For 
Statistical Techniques In Business And Economics
ISBN: 9781265779696
19th Edition
Authors: Douglas Lind, William Marchal, Samuel Wathen
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