A salesman makes initial telephone contact with potential customers in an effort to assess whether a follow-up visit to their homes is likely to be worthwhile. His experience suggests that 40% of the initial contacts lead to follow-up visits. Suppose he contacts 100 people by telephone and the sample proportion of the follow-up visit is calculated. Which of the following statements is (are) correct? This is a multiple-answer question. It may have more than one correct answers. Di. The sample proportion has a normal distribution with a mean of 0.40 and a standard deviation of 04.04 100 Dil. The sample proportion has a normal distribution with a mean of 0.40 and a standard deviation of 0.6, Oiii. The probability that the sample proportion of the follow-up visit is more than 50% is P(p>0.5)=P(z>04-05)=P(z>-2.04) = 1-0.0207 = 0.9793. iv. The probability that the sample proportion of the follow-up visit is more than 50% is P(p>0.5)=P(2: = P(Z > 2.04)=1-0.9793= 0.0207. 0.5-0.4 0.049 -0.049
A salesman makes initial telephone contact with potential customers in an effort to assess whether a follow-up visit to their homes is likely to be worthwhile. His experience suggests that 40% of the initial contacts lead to follow-up visits. Suppose he contacts 100 people by telephone and the sample proportion of the follow-up visit is calculated. Which of the following statements is (are) correct? This is a multiple-answer question. It may have more than one correct answers. Di. The sample proportion has a normal distribution with a mean of 0.40 and a standard deviation of 04.04 100 Dil. The sample proportion has a normal distribution with a mean of 0.40 and a standard deviation of 0.6, Oiii. The probability that the sample proportion of the follow-up visit is more than 50% is P(p>0.5)=P(z>04-05)=P(z>-2.04) = 1-0.0207 = 0.9793. iv. The probability that the sample proportion of the follow-up visit is more than 50% is P(p>0.5)=P(2: = P(Z > 2.04)=1-0.9793= 0.0207. 0.5-0.4 0.049 -0.049
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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