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 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. Ho: <8 H: 428 Hot = B H: 8 Ho: ≤8 H:H>8 Ho: >8 H:H≤8 Ho: 28 H₂H<8 (b) A sample of 130 shoppers showed a sample mean waiting time of 8.4 minutes. Assume a population standard deviation of a = 3.2 minutes. What is the test statistic? (Round your answer to two decimal places.) What is the p-value? (Round your answer to four decimal places.) p-value= (c) At a = 0.05, what is your conclusion? Do not reject Ho. There is sufficient evidence to conclude that the population mean waiting time differs from 8 minutes. Reject Ho. There is insufficient evidence to conclude that the population mean waiting time differs from 8 minutes. Do not reject Ho. There is insufficient evidence to conclude that the population mean waiting time differs from 8 minutes. O Reject Ho. There is sufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
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 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. Ho: <8 H: 428 Hot = B H: 8 Ho: ≤8 H:H>8 Ho: >8 H:H≤8 Ho: 28 H₂H<8 (b) A sample of 130 shoppers showed a sample mean waiting time of 8.4 minutes. Assume a population standard deviation of a = 3.2 minutes. What is the test statistic? (Round your answer to two decimal places.) What is the p-value? (Round your answer to four decimal places.) p-value= (c) At a = 0.05, what is your conclusion? Do not reject Ho. There is sufficient evidence to conclude that the population mean waiting time differs from 8 minutes. Reject Ho. There is insufficient evidence to conclude that the population mean waiting time differs from 8 minutes. Do not reject Ho. There is insufficient evidence to conclude that the population mean waiting time differs from 8 minutes. O Reject Ho. There is sufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
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
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Transcribed Image Text: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 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.
Ho: μ< 8
Η: μ 2 8
H ≥8
Ηγ: μ = 8
H₂:μ‡ 8
Ηji μ = 8
H₂: >8
esc
Ho: μ> 8
H₂: ≤8
Ho:μ ≥8
H₂ μ< 8
(b) A sample of 130 shoppers showed a sample mean waiting time of 8.4 minutes. Assume a population standard deviation of a = 3.2 minutes.
What is the test statistic? (Round your answer to two decimal places.)
What is the p-value? (Round your answer to four decimal places.)
p-value =
(c) At a = 0.05, what is your conclusion?
Do not reject Ho.
There is sufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
Reject Ho
There is insufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
Do not reject Ho. There is insufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
Reject Ho. There is sufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
O
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Transcribed Image Text: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 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.
Ho: μ< 8
Η: μ 2 8
H ≥8
Ηγ: μ = 8
H₂:μ‡ 8
Ηji μ = 8
H₂: >8
esc
Ho: μ> 8
H₂: ≤8
Ho:μ ≥8
H₂ μ< 8
(b) A sample of 130 shoppers showed a sample mean waiting time of 8.4 minutes. Assume a population standard deviation of a = 3.2 minutes.
What is the test statistic? (Round your answer to two decimal places.)
What is the p-value? (Round your answer to four decimal places.)
p-value =
(c) At a = 0.05, what is your conclusion?
Do not reject Ho.
There is sufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
Reject Ho
There is insufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
Do not reject Ho. There is insufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
Reject Ho. There is sufficient evidence to conclude that the population mean waiting time differs from 8 minutes.
O
♫
MA
2
ܒܢ
1
W
3
E
D
$
4
R
F
%
LO
5
T-
G
MacBook Pro
6
Y
&
7
H
W
2
# CO
8
P
J
&
9
K
cricut
*
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