Homework Help is Here – Start Your Trial Now!
Math
Statistics
K Dok A researcher wishes to estimate, with 95% confidence, the population proportion of families who eat fast food at least once per week. Her estimate must be accurate within 5% of the population proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 28% of the respondents said they eat fast food four to six times per week. (c) Compare the results from parts (a) and (b). www (a) What is the minimum sample size needed assuming that no prior information is available? n= (Round up to the nearest whole number as needed.) (b) What is the minimum sample size needed using a prior study that found that 28% of the respondents eat fast food at least once per week? (Round up to the nearest whole number as needed.) n=

K Dok A researcher wishes to estimate, with 95% confidence, the population proportion of families who eat fast food at least once per week. Her estimate must be accurate within 5% of the population proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 28% of the respondents said they eat fast food four to six times per week. (c) Compare the results from parts (a) and (b). www (a) What is the minimum sample size needed assuming that no prior information is available? n= (Round up to the nearest whole number as needed.) (b) What is the minimum sample size needed using a prior study that found that 28% of the respondents eat fast food at least once per week? (Round up to the nearest whole number as needed.) n=

MATLAB: An Introduction with Applications
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
icon
Related questions
Question
Dok S 1 R A researcher wishes to estimate, with 95% confidence, the population proportion of families who eat fast food at least once per week. Her estimate must be accurate within 5% of the population proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. times per week. (b) Find the minimum sample size needed, using a prior study that found that 28% of the respondents said they eat fast food four to six (c) Compare the results from parts (a) and (b). (a) What is the minimum sample size needed assuming that no prior information is available? (Round up to the nearest whole number as needed.) (b) What is the minimum sample size needed using a prior study that found that 28% of the respondents eat fast food at least once per week? =(Round up to the nearest whole number as needed.) n= n= V OD C JO % 5 F6 CO L H 20 & N N F8 *00 8 www D F9 M ㅁㅁ 9 K F10 O V 1:58 PM 72°F Sunny 7¹4) 12522 ☀- F11 O L Alt ☀+ P F12 V Next PrtSc Ctrl + 11 Insert
Transcribed Image Text:Dok S 1 R A researcher wishes to estimate, with 95% confidence, the population proportion of families who eat fast food at least once per week. Her estimate must be accurate within 5% of the population proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. times per week. (b) Find the minimum sample size needed, using a prior study that found that 28% of the respondents said they eat fast food four to six (c) Compare the results from parts (a) and (b). (a) What is the minimum sample size needed assuming that no prior information is available? (Round up to the nearest whole number as needed.) (b) What is the minimum sample size needed using a prior study that found that 28% of the respondents eat fast food at least once per week? =(Round up to the nearest whole number as needed.) n= n= V OD C JO % 5 F6 CO L H 20 & N N F8 *00 8 www D F9 M ㅁㅁ 9 K F10 O V 1:58 PM 72°F Sunny 7¹4) 12522 ☀- F11 O L Alt ☀+ P F12 V Next PrtSc Ctrl + 11 Insert
K A researcher wishes to estimate, with 95% confidence, the population proportion of families who eat fast food at least once per week. Her estimate must be accurate within 5% of the population proportion. tbook 4 R (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 28% of the respondents said they eat fast food four to six times per week. (c) Compare the results from parts (a) and (b). n= (Kound up to the nearest whole number as needed.) (c) How do the results from (a) and (b) compare? OA. Having an estimate of the population proportion has no effect on the minimum sample size needed OB. Having an estimate of the population proportion reduces the minimum sample size needed OC. Having an estimate of the population proportion raises the minimum sample size needed V 978 JUL T G 2 6 & N *00 8 a F9 M 9 K F10 O V 72°F Sunny 20 12m *- F11 L Alt P F12 F 1 Next PrtSc Ctri + 11 A Palk
Transcribed Image Text:K A researcher wishes to estimate, with 95% confidence, the population proportion of families who eat fast food at least once per week. Her estimate must be accurate within 5% of the population proportion. tbook 4 R (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 28% of the respondents said they eat fast food four to six times per week. (c) Compare the results from parts (a) and (b). n= (Kound up to the nearest whole number as needed.) (c) How do the results from (a) and (b) compare? OA. Having an estimate of the population proportion has no effect on the minimum sample size needed OB. Having an estimate of the population proportion reduces the minimum sample size needed OC. Having an estimate of the population proportion raises the minimum sample size needed V 978 JUL T G 2 6 & N *00 8 a F9 M 9 K F10 O V 72°F Sunny 20 12m *- F11 L Alt P F12 F 1 Next PrtSc Ctri + 11 A Palk
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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
SEE MORE TEXTBOOKS