A population has a mean of 200 and a standard deviation of 80. Suppose a sample of size 125 is selected and Z is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +6 of the population mean (to 4 decimals)? b. What is the probability that the sample mean will be within +11 of the population mean (to 4 decimals)?

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Homework 17: Sec 7.5 - 15, 23, 25
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A population has a mean of 200 and a standard deviation of 80. Suppose a sample of size 125 is selected and I is used to estimate u. Use z-table.
a. What is the probability that the sample mean will be within +6 of the population mean (to 4 decimals)?
b. What is the probability that the sample mean will be within +11 of the population mean (to 4 decimals)?
N
bongo
Transcribed Image Text:8:34 * MindTap - Cengage Learning × b The Economic Policy Institut X + -> ng.cengage.com/static/nb/ui/evo/index.html?deploymentld=593518174311339532497160943&elSBN=9780357110584&id=9107 ☆ + >> CENGAGE MINDTAP Q Search this course Homework 17: Sec 7.5 - 15, 23, 25 Questions Exercise 07.15 (Self-Test) Algorithmic Question 1 of 3 1. Check My Work 2. A-Z 3. еBook Video O Office A population has a mean of 200 and a standard deviation of 80. Suppose a sample of size 125 is selected and I is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +6 of the population mean (to 4 decimals)? b. What is the probability that the sample mean will be within +11 of the population mean (to 4 decimals)? N bongo
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