The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A random sample of 150 orders will be used to estimate theproportion of first-time customers.(a) Assume that the president is correct and p= 0.30. What is the sampling distribution of p for n= 150? (Round your answer for o- to four decimal places.)0- =E(p)Since nр 3and n(1 – p) =, approximating the sampling distribution with a normal distribution ---Select---O appropriate in this case.(b) What is the probability that the sample proportion p will be between 0.20 and 0.40? (Round your answer to four decimal places.)(c)What is the probability that the sample proportion will be between 0.25 and 0.35? (Round your answer to four decimal places.)

The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A random sample of 150 orders will be used to estimate the proportion of first-time customers. (a) Assume that the president is correct and p = 0.30. What is the sampling distribution of p for n = 150? (Round your answer for to four decimal places.) E(p) = Since np = and n(1 – p) = approximating the sampling distribution with a normal distribution ---Select--- appropriate in this case. (b) What is the probability that the sample proportionp will be between 0.20 and 0.40? (Round your answer to four decimal places.) (c) What is the probability that the sample proportion will be between 0.25 and 0.35? (Round your answer to four decimal places.)

The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A random sample of 150 orders will be used to estimate the proportion of first-time customers. (a) Assume that the president is correct and p = 0.30. What is the sampling distribution of p for n = 150? (Round your answer for to four decimal places.) E(p) = Since np = and n(1 – p) = approximating the sampling distribution with a normal distribution ---Select--- appropriate in this case. (b) What is the probability that the sample proportionp will be between 0.20 and 0.40? (Round your answer to four decimal places.) (c) What is the probability that the sample proportion will be between 0.25 and 0.35? (Round your answer to four decimal places.)

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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