Select an answer Because we are testing the population standard deviation, we will use v normal distribution with degrees of freedom.

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
Topic Video
Question
Part 1 of 4
The manager of Frenchies is concerned that patrons are not consistently receiving the same amount
of French fries with each order. The chef claims that the standard deviation for a 7-ounce order of
fries is at most 0.8 ounces. To test the chef's claim, the manager randomly weighs 28 orders of fries
with the following results (in ounces):
7.7, 5, 7.3, 8.7, 7.8, 8.3, 8.3, 6.2, 6.1, 7.8, 6.3, 6.9, 4.8, 7.4, 6, 7.2, 6.5, 7, 7.9, 8.7, 7.9, 7.1, 5.7, 7.1, 8.4,
6.8, 6.3, 6.3
Perform a hypothesis test using a 2% level of significance to test the chef's claim.
Step 1: State the null and alternative hypotheses.
Ho:0 sv
0.8
Ha:o >v
0.8
(So we will be performing a right-tailed
test.)
Part 2 of 4
Step 2: Assuming the null hypothesis is true, determine the features of the distribution of
test statistics.
Select an answer
Because we are testing the population standard deviation, we will use v normal
degrees of freedom.
t.
distribution with
Transcribed Image Text:Part 1 of 4 The manager of Frenchies is concerned that patrons are not consistently receiving the same amount of French fries with each order. The chef claims that the standard deviation for a 7-ounce order of fries is at most 0.8 ounces. To test the chef's claim, the manager randomly weighs 28 orders of fries with the following results (in ounces): 7.7, 5, 7.3, 8.7, 7.8, 8.3, 8.3, 6.2, 6.1, 7.8, 6.3, 6.9, 4.8, 7.4, 6, 7.2, 6.5, 7, 7.9, 8.7, 7.9, 7.1, 5.7, 7.1, 8.4, 6.8, 6.3, 6.3 Perform a hypothesis test using a 2% level of significance to test the chef's claim. Step 1: State the null and alternative hypotheses. Ho:0 sv 0.8 Ha:o >v 0.8 (So we will be performing a right-tailed test.) Part 2 of 4 Step 2: Assuming the null hypothesis is true, determine the features of the distribution of test statistics. Select an answer Because we are testing the population standard deviation, we will use v normal degrees of freedom. t. distribution with
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
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.
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