0.00 10.00 5.00 4. 6. 10 (c) Does the 99% confidence interval you constructed contradict the restaurant chain's claim? Choose the best answer from the No, the confidence interval does not contradict the claim. The restaurant chain's claim of 3.12 minutes is inside the 99% confidence interval. No, the confidence interval does not contradict the claim. The restaurant chain's claim of 3.12 minutes is outside the 99% confidence interval. Yes, the confidence interval contradicts the claim. The restaurant chain's claim of 3.12 minutes is inside the 99% confidence interval. the onfdan intorunlcontrndinte the clnim The ronturantchninleclnim of 2 1 minuton in outeida the

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99% confidence interval:
0.00
10.00
5.00
10
(c) Does the 99% confidence interval you constructed contradict the restaurant chain's claim? Choose the best answer from the choices be
No, the confidence interval does not contradict the claim. The restaurant chain's claim of 3.12 minutes is inside
the 99% confidence interval.
No, the confidence interval does not contradict the claim. The restaurant chain's claim of 3.12 minutes is outside
the 99% confidence interval.
Yes, the confidence interval contradicts the claim. The restaurant chain's claim of 3.12 minutes is inside the 99%
confidence interval.
idonca interalcontrndicte theolaim
The roataurant chninle elaim of 212 minutoain sutnida th
Continue
2.
Transcribed Image Text:99% confidence interval: 0.00 10.00 5.00 10 (c) Does the 99% confidence interval you constructed contradict the restaurant chain's claim? Choose the best answer from the choices be No, the confidence interval does not contradict the claim. The restaurant chain's claim of 3.12 minutes is inside the 99% confidence interval. No, the confidence interval does not contradict the claim. The restaurant chain's claim of 3.12 minutes is outside the 99% confidence interval. Yes, the confidence interval contradicts the claim. The restaurant chain's claim of 3.12 minutes is inside the 99% confidence interval. idonca interalcontrndicte theolaim The roataurant chninle elaim of 212 minutoain sutnida th Continue 2.
A chain of taco restaurants claims that the population mean of the wait times in their drive-thru for all customers is 3.12 minutes. You work for a competitor
and you want to test that claim. To do so, you select a random sample of 40 of the chain's drive-thru customers and record the wait time in the drive-thru for
each. Assume it is known that the population standard deviation of the wait times in the drive-thru for the taco chain's restaurants is 2.79 minutes.
Based on your sample, follow the steps below to construct a 99% confidence interval for the population mean of the wait times in the drive-thru for all
customers. Then state whether the confidence interval you construct contradicts the restaurant chain's claim. (If necessary, consult a list of formulas.)
(a)
Click on "Take Sample" to see the results from your random sample of 40 customers.
Sample standard
deviation
Population standard
Number of customers
Sample mean
deviation
Take Sample
2.79
Enter the values of the sample size, the point estimate for the population mean, the population standard deviation, and the critical value you need
for your 99% confidence interval. (Choose the correct critical value from the table of critical values provided.) When you are done, select
"Compute".
Sample size:
Standard error:
Point estimate:
Critical values
Margin of orror.
Ponulation standard deviation:
Subr
Continue
Transcribed Image Text:A chain of taco restaurants claims that the population mean of the wait times in their drive-thru for all customers is 3.12 minutes. You work for a competitor and you want to test that claim. To do so, you select a random sample of 40 of the chain's drive-thru customers and record the wait time in the drive-thru for each. Assume it is known that the population standard deviation of the wait times in the drive-thru for the taco chain's restaurants is 2.79 minutes. Based on your sample, follow the steps below to construct a 99% confidence interval for the population mean of the wait times in the drive-thru for all customers. Then state whether the confidence interval you construct contradicts the restaurant chain's claim. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results from your random sample of 40 customers. Sample standard deviation Population standard Number of customers Sample mean deviation Take Sample 2.79 Enter the values of the sample size, the point estimate for the population mean, the population standard deviation, and the critical value you need for your 99% confidence interval. (Choose the correct critical value from the table of critical values provided.) When you are done, select "Compute". Sample size: Standard error: Point estimate: Critical values Margin of orror. Ponulation standard deviation: Subr Continue
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