a.) what is the probability that the sample mean is 25 grams or more? b.) what is the probability that the sample mean is between 25 grams and 27 grams?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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If a sample of 50 Lotta burgers is taken,

a.) what is the probability that the sample mean is 25 grams or more?

b.) what is the probability that the sample mean is between 25 grams and 27 grams?

2-Burger Shack claims that the mean number of grams of fat, µ, in its Lotta Burger is 24 grams with a standard deviation, o, of 5 grams.
If a sample of 50 Lotta Burgers is taken,
what is the probability that the sample mean is 25 grams or more?
a-
b- what is the probability that the sample mean is between 25 grams and 27 grams?
Transcribed Image Text:2-Burger Shack claims that the mean number of grams of fat, µ, in its Lotta Burger is 24 grams with a standard deviation, o, of 5 grams. If a sample of 50 Lotta Burgers is taken, what is the probability that the sample mean is 25 grams or more? a- b- what is the probability that the sample mean is between 25 grams and 27 grams?
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