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Author Question: A random sample of 1000 people was taken. Four hundred fifty of the people in the sample favored ... (Read 67 times)

Darron12

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on: Mar 25, 2023

Question 1

A population has a standard deviation of 50. A random sample of 100 items from this population is selected. The sample mean is determined to be 600. At 95% confidence, the margin of error is


◦

5


◦

9.8


◦

650


◦

609.8



Question 2

A random sample of 1000 people was taken. Four hundred fifty of the people in the sample favored Candidate A. The 95% confidence interval for the true proportion of people who favors Candidate A is


◦

0.419 to 0.481


◦

0.40 to 0.50


◦

0.45 to 0.55


◦

1.645 to 1.96

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by Darron12 on Mar 25, 2023

labrinker

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Reply #1 on: Mar 25, 2023
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Darron12

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Reply 2 on: Mar 25, 2023
Wow, this really help

anyusername12131

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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