Question

A researcher 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 25 individuals resulted in a mean income of $15,000. What is the approximate upper end point in a 99% confidence interval for the average income? Group of answer choices $15,466 $15,103 $15,200 $15,515

Name: a researcher is interested in studying the incomes of consumers in a particular country the population standard deviation is known to be 1000 a random sample of 25 individuals resulted in a mean incom
Uploaded: 2023-10-21T17:27:40-08:00
Duration: 1 min 25 s
Channel: Nick Johnson
Description: a researcher is interested in studying the incomes of consumers in a particular country the population standard deviation is known to be 1000 a random sample of 25 individuals resulted in a mean incom

          A researcher 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 25 individuals resulted in a mean income of $15,000. What is the approximate upper end point in a 99% confidence interval for the average income?



Group of answer choices

$15,466

$15,103

$15,200

$15,515

Added by Feather H.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Nick Johnson

10/21/2023

Step 1

576 - Margin of error = 2.576 * (1000 / sqrt(25)) - Margin of error = 2.576 * (1000 / 5) - Margin of error = 2.576 * 200 - Margin of error = 515.2 Show more…

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A researcher 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 25 individuals resulted in a mean income of $15,000. What is the approximate upper end point in a 99% confidence interval for the average income? Group of answer choices $15,466 $15,103 $15,200 $15,515