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 v test.) Part 2 of 4 Step 2: Assuming the null hypothesis is true, determine the features of the distribution of test statistics. Because we are testing the population standard deviation, we will use a x distribution wit 27 v degrees of freedom. Part 3 of 4 Step 3: Find the p-value of the test statistic. Sample Mean: %3D Enter an integer or decimal number (more.] Sample Standard Deviatiom. S P(x ? %3D p-value =

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Part Tor 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:o sv 0.8
Ha:o >v 0.8
(So we will be performing a right-tailed
v test.)
Part 2 of 4
Step 2: Assuming the null hypothesis is true, determine the features of the distribution of
test statistics.
Because we are testing the population standard deviation, we will use a x
distribution wit 27
degrees of freedom.
Part 3 of 4
Step 3: Find the p-value of the test statistic.
Sample Mean: =
Enter an integer or decimal number [more.]
Sample Standard Deviation.S
P(x² ?
p-value =
Transcribed Image Text:Part Tor 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:o sv 0.8 Ha:o >v 0.8 (So we will be performing a right-tailed v test.) Part 2 of 4 Step 2: Assuming the null hypothesis is true, determine the features of the distribution of test statistics. Because we are testing the population standard deviation, we will use a x distribution wit 27 degrees of freedom. Part 3 of 4 Step 3: Find the p-value of the test statistic. Sample Mean: = Enter an integer or decimal number [more.] Sample Standard Deviation.S P(x² ? p-value =
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