The president of Doerman Distributors, Inc., believes that 27% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used too estimate the proportic first-time customers. Use z-table. a. Assume that the president is correct and p 0.27. What the sampling distribution of p for this study? A normal distribution because np and n(1-p) are both greater than 5 o.What is the probability that the sample proportion will be between .14 and .40 (to 4 decimals)? c. What is the probability that the sample proportion will be between .19 and .35 (to 4 decimals)? X

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
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The president of Doerman Distributors, Inc., believes that 27% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used too estimate the proportic
first-time customers. Use z-table.
a. Assume that the president is correct and p 0.27. What
the sampling distribution of p for this study?
A normal distribution because np and n(1-p) are both greater than 5
o.What is the probability that the sample proportion will be between .14 and .40 (to 4 decimals)?
c. What is the probability that the sample proportion will be between .19 and .35 (to 4 decimals)?
X
Transcribed Image Text:The president of Doerman Distributors, Inc., believes that 27% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used too estimate the proportic first-time customers. Use z-table. a. Assume that the president is correct and p 0.27. What the sampling distribution of p for this study? A normal distribution because np and n(1-p) are both greater than 5 o.What is the probability that the sample proportion will be between .14 and .40 (to 4 decimals)? c. What is the probability that the sample proportion will be between .19 and .35 (to 4 decimals)? X
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