A population of values has a normal distribution with μ = 245.9 and σ = 85.9. If a random sample of size 20 is selected, a. Find the probability that a single randomly selected value is greater than 242.1. Round your answer to four decimals. P(X > 242.1)= b. Find the probability that a sample of size n = 20 is randomly selected with a mean greater than 242.1. Round your answer to four decimals. P(M>242.1)= Question Help: Video

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 8PPS
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A population of values has a normal distribution with p=245.9 and σ = 85.9. If a random sample of size
20 is selected,
n =
a. Find the probability that a single randomly selected value is greater than 242.1. Round your answer
to four decimals.
P(X >242.1)=
b. Find the probability that a sample of size n = 20 is randomly selected with a mean greater than
242.1. Round your answer to four decimals.
P(M>242.1)=
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Transcribed Image Text:A population of values has a normal distribution with p=245.9 and σ = 85.9. If a random sample of size 20 is selected, n = a. Find the probability that a single randomly selected value is greater than 242.1. Round your answer to four decimals. P(X >242.1)= b. Find the probability that a sample of size n = 20 is randomly selected with a mean greater than 242.1. Round your answer to four decimals. P(M>242.1)= Question Help: Video Submit Question MacBook Air
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