Check My Work (2 remaining CCN and ActMedia provided a television channel targeted to individuals waiting in supermarket checkout lines. The channel showed news, short features, and advertisements. The length of the program was based on the assumption that the population mean time a shopper stands in a supermarket checkout line is 8.1 minutes. A sample of actual waiting times will be used to test this assumption and determine whether actual mean waiting time differs from this standard. a. Formulate the hypotheses for this application. He :p- Select your answer V 8.1 Ha:- Select your answer V8.1 b. A sample of 100 shoppers showed a sample mean waiting time of 8.9 minutes. Assume a population standard deviation of o= 2.8 minutes. What is the p-value? z value (to 2 decimals) pvalue (to 4 decimals) C. At a = 0.02, what is your conclusion? - Select your answer - Select your answer- V conclude that the population mean waiting time differs from 8.1 minutes. d. Compute a 98% confidence interval for the population mean. ) (to 2 decimals) Does it support your conclusion?
Check My Work (2 remaining CCN and ActMedia provided a television channel targeted to individuals waiting in supermarket checkout lines. The channel showed news, short features, and advertisements. The length of the program was based on the assumption that the population mean time a shopper stands in a supermarket checkout line is 8.1 minutes. A sample of actual waiting times will be used to test this assumption and determine whether actual mean waiting time differs from this standard. a. Formulate the hypotheses for this application. He :p- Select your answer V 8.1 Ha:- Select your answer V8.1 b. A sample of 100 shoppers showed a sample mean waiting time of 8.9 minutes. Assume a population standard deviation of o= 2.8 minutes. What is the p-value? z value (to 2 decimals) pvalue (to 4 decimals) C. At a = 0.02, what is your conclusion? - Select your answer - Select your answer- V conclude that the population mean waiting time differs from 8.1 minutes. d. Compute a 98% confidence interval for the population mean. ) (to 2 decimals) Does it support your conclusion?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![Check My Work (2 remaining
CCN and ActMedia provided a television channel targeted to individuals waiting in supermarket checkout lines. The channel showed news, short features, and advertisements. The length of the program was based on the assumption that the population
mean time a shopper stands in a supermarket checkout line is 8.1 minutes. A sample of actual waiting times will be used to test this assumption and determine whether actual mean waiting time differs from this standard.
a. Formulate the hypotheses for this application.
Select your answer -
8.1
Ha P
Select your answer -
8.1
b. A sample of 100 shoppers showed a sample mean waiting time of 8.9 minutes. Assume a population standard deviation of a = 2.8 minutes. What is the p-value?
z value
(to 2 decimals)
p-value
(to 4 decimals)
C. At a = 0,.02, what is your conclusion?
Select your answer-
Select your answer -
conclude that the population mean waiting time differs from 8.1 minutes.
d. Compute a 98% confidence interval for the population mean.
) (to 2 decimals)
Does it support your conclusion?,](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5a0ca412-116f-488b-9f1f-b94c6784a43c%2Faf2a9168-18ed-465f-9977-b68fd7f69148%2Fx2hfdo_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Check My Work (2 remaining
CCN and ActMedia provided a television channel targeted to individuals waiting in supermarket checkout lines. The channel showed news, short features, and advertisements. The length of the program was based on the assumption that the population
mean time a shopper stands in a supermarket checkout line is 8.1 minutes. A sample of actual waiting times will be used to test this assumption and determine whether actual mean waiting time differs from this standard.
a. Formulate the hypotheses for this application.
Select your answer -
8.1
Ha P
Select your answer -
8.1
b. A sample of 100 shoppers showed a sample mean waiting time of 8.9 minutes. Assume a population standard deviation of a = 2.8 minutes. What is the p-value?
z value
(to 2 decimals)
p-value
(to 4 decimals)
C. At a = 0,.02, what is your conclusion?
Select your answer-
Select your answer -
conclude that the population mean waiting time differs from 8.1 minutes.
d. Compute a 98% confidence interval for the population mean.
) (to 2 decimals)
Does it support your conclusion?,
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