The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 1.3 minutes, w deviation of walting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.05. Complete parts (a) through (d) below. E Click on the icon to view the data. a. Identify the null and altemative hypotheses. Choose the correct answer b O Customer Waiting Times OA Ho:0=1.3 minutes HAO13 minutes C. Ho: o1.3 minutes HA:o<13 minutes Customer Waiting Times (in minutes) 6.1 6.8 6.8 7.2 8.7 6.1 6.8 7.5 6.7 7.8 7.4 6.2 b. Compute the test statistic. 6.6 7.6 10.3 6.9 6.4 7.7 4.4 6.5 7.2 7.8 7.3 7.7 6.4 (Round to two decimal places as needed.) 7.1 6.5 6.9 6.2 6.7 7.3 72 6.6 7.6 6.3 6.2 6.2 7.4 7.1 8.1

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Topic Video
Question
The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 1.3 minutes, which is the standard
deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.05. Complete parts (a) through (d) below.
A Click on the icon to view the data.
a. Identify the null and alternative hypotheses. Choose the correct answer b
i Customer Waiting Times
O A Ho: o=1.3 minutes
HA:o#1.3 minutes
Customer Waiting Times
(in minutes)
6.1
C. Ho: 0=1.3 minutes
HA:o<1.3 minutes
8.7
6.1
6.8
7.2
6.2
6.9
6.8
6.8
7.5
7.8
7.6
6.7
7.4
b. Compute the test statistic.
6.6
10.3
6.5
7.8
6.4
7.7
4.4
7.2
7.3
7.7
6.4
(Round to two decimal places as needed.)
6.6
7.1
6.2
6.2
7.6
6.5
6.7
7.3
6.9
8.1
5.5
6.3
6.2
7.4
7.1
7.2
6.9
6.4
6.1
6.9
6.1
6.3
7.9
6.4
7.9
6.7
14.2
6.2
8.1
7.8
7.3
7.5
6.9
7.7
7.5
Print
Done.
Enter your answer in the answer box and then click Check Answer,
Check Answer
Clear All
parts
2 remaining
MacBook Pro
F11
F12
FI0
F9
F7
F6
F5
F4
F2
F3
esc
F1
&
#3
24
delete
@
7
8.
9
3
4.
P
Y
E
R
Q
enter
tab
K
ret
F
G
caps lock
V
B
is
A/
Transcribed Image Text:The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 1.3 minutes, which is the standard deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.05. Complete parts (a) through (d) below. A Click on the icon to view the data. a. Identify the null and alternative hypotheses. Choose the correct answer b i Customer Waiting Times O A Ho: o=1.3 minutes HA:o#1.3 minutes Customer Waiting Times (in minutes) 6.1 C. Ho: 0=1.3 minutes HA:o<1.3 minutes 8.7 6.1 6.8 7.2 6.2 6.9 6.8 6.8 7.5 7.8 7.6 6.7 7.4 b. Compute the test statistic. 6.6 10.3 6.5 7.8 6.4 7.7 4.4 7.2 7.3 7.7 6.4 (Round to two decimal places as needed.) 6.6 7.1 6.2 6.2 7.6 6.5 6.7 7.3 6.9 8.1 5.5 6.3 6.2 7.4 7.1 7.2 6.9 6.4 6.1 6.9 6.1 6.3 7.9 6.4 7.9 6.7 14.2 6.2 8.1 7.8 7.3 7.5 6.9 7.7 7.5 Print Done. Enter your answer in the answer box and then click Check Answer, Check Answer Clear All parts 2 remaining MacBook Pro F11 F12 FI0 F9 F7 F6 F5 F4 F2 F3 esc F1 & #3 24 delete @ 7 8. 9 3 4. P Y E R Q enter tab K ret F G caps lock V B is A/
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Centre, Spread, and Shape of a Distribution
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
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