Thirty-three percent of all Americans drink bottled water more than once a week (Natural resources Defense Council, December 4, 2015). Suppose you havebeen hired by the Natural Resources Defence Council to investigate bottled water consumption in St. Paul. You plan to select a sample of St. Paulites toestimate the proportion who drink bottled water more than once a week. Assume the popluation proportion of St. Paulites who drink bottled water more thanonce a week is 0.33, the same as the overall proportion of Americans who drink bottled water more than once a week. Use z-table.a. Suppose you select a sample of 540 St.Paulites. Show the sampling distribution of p (to 4 decimals).E(p).3300Op =.0332b. Based upon a sample of 540 St. Paulites, what is the probability that the sample proportion will be within 0.06 of the population proportion (to 4 decimals).probabilityc. Suppose you select a sample of 150 St.Paulites. Show the sampling distribution of p (to 4 decimals).E(p) =.3300Op =d. Based upon a smaller sample of only 150 St. Paulites, what is the probability that the sample proportion will be within 0.06 of the population proportion (to 4decimals).probabilitye. As measured by the increase in probability, how much do you gain in precision by taking the larger sample in parts (a) and (b) rather than the smallersample in parts (c) and (d)?Reduced byHave gain in precision by increasing the sample. V

According to the answering guidelines, we can answer only three subparts of a question and the rest…

a. Suppose you select a sample of 540 St.Paulites. Show the sampling distribution of p (to 4 decimals). E(p) = .3300 .0332 b. Based upon a sample of 540 St. Paulites, what is the probability that the sample proportion will be within 0.06 of the population proportion (to 4 decimals). probability = c. Suppose you select a sample of 150 St.Paulites. Show the sampling distribution of p (to 4 decimals). E(f) = .3300

a. Suppose you select a sample of 540 St.Paulites. Show the sampling distribution of p (to 4 decimals). E(p) = .3300 .0332 b. Based upon a sample of 540 St. Paulites, what is the probability that the sample proportion will be within 0.06 of the population proportion (to 4 decimals). probability = c. Suppose you select a sample of 150 St.Paulites. Show the sampling distribution of p (to 4 decimals). E(f) = .3300

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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