Homework Help is Here – Start Your Trial Now!
Math
Statistics
5. Which of the confidence level has a confidence interval of 2.58? a. 90% 6. What is the value of n if E= 0.08; q= 0. 79 and z á/2 = 1.96? a. 55 b. 95% c. 97% d. 99% b. 100 c. 450 d. 700 7 O Wle would lilke te tort buginog ond ntimot noggiblo quator

5. Which of the confidence level has a confidence interval of 2.58? a. 90% 6. What is the value of n if E= 0.08; q= 0. 79 and z á/2 = 1.96? a. 55 b. 95% c. 97% d. 99% b. 100 c. 450 d. 700 7 O Wle would lilke te tort buginog ond ntimot noggiblo quator

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

Numbers 5-6 only.

V. Exercise: СНОOSE MЕ! Direction: Choose the letter of the best answer. 1. Which of the following denotes the sample size? b. s с. и d. E а. n 2. To determine the sample size it is necessary to have the value of standard deviation, Za/2 & b. margin of error c. confidence d. variance a. mean 3. As the number of sample size increases, which is NOT true? a. the margin of error decreases. b. the standard deviation increases. c. width of the confidence interval decreases d. the samples mean decreases. 4. What is the value of n if E= 5; 0 = 25 and z á/2 = 1.96? а. 90 b. 93 с. 97 d. 100 5. Which of the confidence level has a confidence interval of 2.58? a. 90% b. 95% c. 97% d. 99% 6. What is the value of n if E= 0.08; q= 0. 79 and z á/2 = 1.96? b. 100 a. 55 с. 450 d. 700 7-8. We would like to start a business and need to estimate the average possible customers in one week for our business plan and model. How many potential customers must we randomly select to be 95% sure that the sample mean is within 1 minute of the population mean u. Assume that a previous survey has shown o =6.95 minutes. а. 160 b. 168 с. 180 d. 186 9-10. Chris wants to know, with 99% confidence, the proportion of students who prefer to use smartphones. A survey showed that 95% like to use smartphones. Chris likes to be accurate within 2% of the true proportion. What sample size does Chris need? a. 251 b. 571 c.791 d. 971
Transcribed Image Text:V. Exercise: СНОOSE MЕ! Direction: Choose the letter of the best answer. 1. Which of the following denotes the sample size? b. s с. и d. E а. n 2. To determine the sample size it is necessary to have the value of standard deviation, Za/2 & b. margin of error c. confidence d. variance a. mean 3. As the number of sample size increases, which is NOT true? a. the margin of error decreases. b. the standard deviation increases. c. width of the confidence interval decreases d. the samples mean decreases. 4. What is the value of n if E= 5; 0 = 25 and z á/2 = 1.96? а. 90 b. 93 с. 97 d. 100 5. Which of the confidence level has a confidence interval of 2.58? a. 90% b. 95% c. 97% d. 99% 6. What is the value of n if E= 0.08; q= 0. 79 and z á/2 = 1.96? b. 100 a. 55 с. 450 d. 700 7-8. We would like to start a business and need to estimate the average possible customers in one week for our business plan and model. How many potential customers must we randomly select to be 95% sure that the sample mean is within 1 minute of the population mean u. Assume that a previous survey has shown o =6.95 minutes. а. 160 b. 168 с. 180 d. 186 9-10. Chris wants to know, with 99% confidence, the proportion of students who prefer to use smartphones. A survey showed that 95% like to use smartphones. Chris likes to be accurate within 2% of the true proportion. What sample size does Chris need? a. 251 b. 571 c.791 d. 971
Expert Solution
steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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