Check My Work eBook Thirty-six percent of all Americans drink bottled water more than once a week (Natural resources Defense Council, December 4, 2015). Suppose you have been hired by the Natural Resources Defence Council to investigate bottled water consumption in St. Paul. You plan to select a sample of St. Paulites to estimate the proportion who drink bottled water more than once a week. Assume che popluation proportion of St. Paulites who drink bottled water more than once a week is 0.36, 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(F) = b. Based upon a sample of 540 st. Paulites, what is the probability that the sample proportion will be within 0.09 of the population proportion (to 4 decimals). probability = C. Suppose you select a sample of 190 st.Paulites. Show the sampling distribution of p (to 4 decimals). E(p): d. Based upon a smaller sample of only 190 st. Paulites, what is the probability that the sample proportion will be within 0.09 of the population proportion (to 4 decimals). probability = e. 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 smaller sample in parts (c) and (d)? Select your answer - v Select your answer-

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Topic Video
Question

this is a practice exam that is not graded. to prepare for the upcoming, graded exam.

Check My Work
eBook
Thirty-six percent of all Americans drink bottled water more than once a week (Natural resources Defense Council, December 4, 2015). Suppose you have been hired by the Natural Resources
Defence Council to investigate bottled water consumption in St. Paul. You plan to select a sample of St. Paulites to estimate the proportion who drink bottled water more than once a week. Assume
the popluation proportion of St. Paulites who drink bottled water more than once a week is 0.36, 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) =
b. Based upon a sample of 540 st. Paulites, what is the probability that the sample proportion will be within 0.09 of the population proportion (to 4 decimals).
probability =
C. Suppose you select a sample of 190 st.Paulites. Show the sampling distribution of p (to 4 decimals).
E(F)=
d. Based upon a smaller sample of only 190 St. Paulites, what is the probability that the sample proportion will be within 0.09 of the population proportion (to 4 decimals).
probability =
%3D
e. 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 smaller sample in parts (c) and (d)?
Select your answer - V
Select your answer -
Check My Work
O ASI
f- 図
|目4
1:03 PM
ヘ口
11/17/202
Transcribed Image Text:Check My Work eBook Thirty-six percent of all Americans drink bottled water more than once a week (Natural resources Defense Council, December 4, 2015). Suppose you have been hired by the Natural Resources Defence Council to investigate bottled water consumption in St. Paul. You plan to select a sample of St. Paulites to estimate the proportion who drink bottled water more than once a week. Assume the popluation proportion of St. Paulites who drink bottled water more than once a week is 0.36, 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) = b. Based upon a sample of 540 st. Paulites, what is the probability that the sample proportion will be within 0.09 of the population proportion (to 4 decimals). probability = C. Suppose you select a sample of 190 st.Paulites. Show the sampling distribution of p (to 4 decimals). E(F)= d. Based upon a smaller sample of only 190 St. Paulites, what is the probability that the sample proportion will be within 0.09 of the population proportion (to 4 decimals). probability = %3D e. 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 smaller sample in parts (c) and (d)? Select your answer - V Select your answer - Check My Work O ASI f- 図 |目4 1:03 PM ヘ口 11/17/202
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 7 images

Blurred answer
Knowledge Booster
Propositional Calculus
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman