Homework Help is Here – Start Your Trial Now!
Math
Statistics
A telemarketer at a credit card company is instructed to ask the next 10 customers that call into the 800 number whether they are aware of the new Platinum card that the company is offering. Of the 10, 9 said they were aware of the program. a) Check the assumptions and conditions for inference on proportions. b) If conditions are met, find a 98% confidence interval for the true proportion of customers who are aware of the new card. If conditions are not met, explain why. a) Check the assumptions and conditions. Choose the correct answer below. O A. The independence assumption is violated; whether one customer is aware of the new Platinum card is dependent upon whether another customer is aware of the new Platinum card. O B. This was a random sample of less than 10% of all customers at the credit card company; there were 9 successes and 1 failure, which is not at least 10, so the sample is not large enough. OC. This was a random sample of less than 10% of all customers at the credit card company; there were at least 10 successes and 10 failures, so the sample is large enough. O D. This was a random sample of more than 10% of all customers at the credit card company; the sample is too large. b) What is the confidence interval? Select the correct choice below and, if necessary, fill in the answer boxes within your choice. O A. The 98% confidence interval is ( (Round to three decimal places as needed. Use ascending order.) O B. The conditions of a confidence interval are not satisfied.

A telemarketer at a credit card company is instructed to ask the next 10 customers that call into the 800 number whether they are aware of the new Platinum card that the company is offering. Of the 10, 9 said they were aware of the program. a) Check the assumptions and conditions for inference on proportions. b) If conditions are met, find a 98% confidence interval for the true proportion of customers who are aware of the new card. If conditions are not met, explain why. a) Check the assumptions and conditions. Choose the correct answer below. O A. The independence assumption is violated; whether one customer is aware of the new Platinum card is dependent upon whether another customer is aware of the new Platinum card. O B. This was a random sample of less than 10% of all customers at the credit card company; there were 9 successes and 1 failure, which is not at least 10, so the sample is not large enough. OC. This was a random sample of less than 10% of all customers at the credit card company; there were at least 10 successes and 10 failures, so the sample is large enough. O D. This was a random sample of more than 10% of all customers at the credit card company; the sample is too large. b) What is the confidence interval? Select the correct choice below and, if necessary, fill in the answer boxes within your choice. O A. The 98% confidence interval is ( (Round to three decimal places as needed. Use ascending order.) O B. The conditions of a confidence interval are not satisfied.

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
A telemarketer at a credit card company is instructed to ask the next 10 customers that call into the 800 number whether they are aware of the new Platinum card that the company is offering. Of the 10, 9 said they were aware of the program. a) Check the assumptions and conditions for inference on proportions. b) If conditions are met, find a 98% confidence interval for the true proportion of customers who are aware of the new card. If conditions are not met, explain why. a) Check the assumptions and conditions. Choose the correct answer below. O A. The independence assumption is violated; whether one customer is aware of the new Platinum card is dependent upon whether another customer is aware of the new Platinum card. O B. This was random sample of less than 10% of all customers at the credit card company; there were 9 successes and 1 failure, which is not at least 10, so the sample is not large enough. O C. This was a random sample of less than 10% of all customers at the credit card company; there were at least 10 successes and 10 failures, so the sample is large enough. O D. This was a random sample of more than 10% of all customers at the credit card company; the sample is too large. b) What is the confidence interval? Select the correct choice below and, if necessary, fill in the answer boxes within your choice. O A. The 98% confidence interval is (Round to three decimal places as needed. Use ascending order.) O B. The conditions of a confidence interval are not satisfied.
Transcribed Image Text:A telemarketer at a credit card company is instructed to ask the next 10 customers that call into the 800 number whether they are aware of the new Platinum card that the company is offering. Of the 10, 9 said they were aware of the program. a) Check the assumptions and conditions for inference on proportions. b) If conditions are met, find a 98% confidence interval for the true proportion of customers who are aware of the new card. If conditions are not met, explain why. a) Check the assumptions and conditions. Choose the correct answer below. O A. The independence assumption is violated; whether one customer is aware of the new Platinum card is dependent upon whether another customer is aware of the new Platinum card. O B. This was random sample of less than 10% of all customers at the credit card company; there were 9 successes and 1 failure, which is not at least 10, so the sample is not large enough. O C. This was a random sample of less than 10% of all customers at the credit card company; there were at least 10 successes and 10 failures, so the sample is large enough. O D. This was a random sample of more than 10% of all customers at the credit card company; the sample is too large. b) What is the confidence interval? Select the correct choice below and, if necessary, fill in the answer boxes within your choice. O A. The 98% confidence interval is (Round to three decimal places as needed. Use ascending order.) O B. The conditions of a confidence interval are not satisfied.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE 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