An economist is interested in studying the incomes of consumers in a particular country. The population standard deviation is known to be $1,000. A random sample of 50 individuals resulted in a
Mean income of $15,000. What is the width of the 90% confidence interval?
A) $232.60
B) $364.30
C) $465.23
D) $728.60

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The Answer of An economist is interested in studying the incomes of consumers in a particular country. The population standard deviation is known to be $1,000. A random sample of 50 individuals resulted in a
Mean income of $15,000. What is the width of the 90% confidence interval?
A) $232.60
B) $364.30
C) $465.23
D) $728.60

An Economist Is Interested in Studying the Incomes of Consumers