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

See similar textbooks

Similar questions

The average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is higher. The final exam scores for the 14 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 82, 85, 97, 74, 84, 87, 65, 63, 79, 97, 69, 61, 83, 78 What can be concluded at the the αα = 0.05 level of significance level of significance? The null and alternative hypotheses would be: H0:H0: ? μ p Select an answer > ≠ < = H1:H1: ? p μ Select an answer ≠ = > < The test statistic ? z t = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)
= 4 7 8 10 Withdrawal symptoms may occur when a person using a painkiller stops using it. For a certain, widely taken painkiller, withdrawal symptoms occur in 12% of people who have stopped using the painkiller. Suppose that we will take a random sample of 8 people who have stopped using the painkiller. Let p represent the proportion of people from the sample who experienced withdrawal symptoms. Consider the sampling distribution of the sample proportion p. Complete the following. Carry your intermediate computations to four or more decimal places. Write your answers with two decimal places, rounding if needed. (a) Find un (the mean of the sampling distribution of the sample proportion). HA = || (b) Find on (the standard deviation of the sampling distribution of the sample proportion).
Describe the sampling distribution of p. Assume the size of the population is 30,000. n= 400, p= 0.7 Choose the phrase that best describes the shape of the sampling distribution of p below. O A. Approximately normal because n s0.05N and np(1- p) < 10. O B. Not normal because ns0.05N and np(1- p) 2 10. C. Approximately normal because n 0.05N and np(1- p) 2 10. O D. Not normal because ns0.05N and np(1- p) < 10. Determine the mean of the sampling distribution of p. HA = (Round to one decimal place as needed.)
The average final exam score for the statistics course is 82%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 14 randomly selected students who were given the colored pens are shown below. ASsume that the distribution of the population is normal. 92, 81, 89, 76, 64, 63, 83, 83, 59, 56, 63, 56, 84, 62 What can be concluded at the the a = 0.01 level of significance level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Но: H1: μ c. The test statistic t (please %3D show your answer to 3 decimal places.) d. The p-value (Please show your answer %D to 4 decimal places.)
Help
Describe the sampling distribution of p. Assume the size of the population is 30,000. n=800, p= 0.4
Repost
When pick the correct answer please pick one of the A, B, C answers below.
Determine whether the statement is true or false. If it is false, rewrite it as a true statement. A sampling distribution of a sample mean is normal only if the population is normal. Choose the correct answer below. O A. The statement is false. A sampling distribution of a sample mean is approximately normal if either n ≥ 30 or the population is normal. B. The statement is false. A sampling distribution of a sample mean is never normal. O C. The statement is false. A sampling distribution of a sample mean is approximately normal only if n ≥ 30. OD. The statement is true.
A. Find the proportion runners with the time less than 160 minutes? Show work B. Find the proportion of times 201 minutes or 209 minutes ? Show work C. Describe the shape of the distribution? Identify the class that contains the 50th percentile. is this a typical time ?identify the runners in the 50th percentile. Show work
Dut Trenta and his friends play a game where they will win the amount indicated in the boxes they will pick. In Box 1, 2, 3, 4, 5, and 6, the prizes are 500, 1000, 500, 800, 1500, and 2000 respectively. A random sample of 3 boxes were selected without replacement. Let X be the amount indicated inside a box. a. Find the sampling distribution of ?. b. Find the mean and standard deviation of ?.
= 12,000 and p = 0.71. A random sample of 902 elements selected from this population gave p 0.61. Find For a population, N the sampling error. Enter the exact answer. sampling error =