Kizspy | Question: 14
(Choose 1 answer)
Let 20.025 1.96.
An economist is interested in studying the incomes of consumers in a particular region. The population standard deviation is knov ndividuals resulted in an average income of $15000. What total sample size would the economist need to use for a 95% confidence interval if the width of the interval should not be more than
$100?
n=20
B. n=40 C. n=1537
D. n=385
E. None of the other choices is correct
