Multiple Choice
An economist is interested in studying the incomes of consumers in a particular region.The population standard deviation is known to be $2,000.A random sample of 50 individuals resulted in an average income of $30,000.
-What is the width of the 90% confidence interval?
A) $930.56
B) $1,457.20
C) $465.20
D) $728.60
Correct Answer:
Verified
Correct Answer:
Verified
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