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:o 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. Because weyare testing the population standard deviation, we will use a x v degrees of freedom. distribution with 27 Part 3 of 4 Step 3: Find the p-value of the test statistic. Sample Mean: = %3D Sample Standard Deviation: s = P(x ? p-value = <>

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:o 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. Because weyare testing the population standard deviation, we will use a x v degrees of freedom. distribution with 27 Part 3 of 4 Step 3: Find the p-value of the test statistic. Sample Mean: = %3D Sample Standard Deviation: s = P(x ? p-value = <>

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Description: The manager of Frenchies is concerned that patrons are not consistently receiving the same amountof French fries with each order. The chef claims that the standard deviation for a 7-ounce order offries is at most 0.8 ounces. To test the chef's claim

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

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:o 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.
Because weyare testing the population standard deviation, we will use a x
distribution with 27
degrees of freedom.
Part 3 of 4
Step 3: Find the p-value of the test statistic.
Sample Mean: ¤ =
Sample Standard Deviation: s =
P(x ?
p-value =

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