Question

In a study of the accuracy of fast food drive thru orders Burger King had 264...

In a study of the accuracy of fast food drive thru orders Burger King had 264 accurate orders and 54 that were not accurate. Construct a 99% confidence interval estimate of the percentage of orders that are not accurate. Please explain the process.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

We have given,

In a study of the accuracy of fast food drive thru orders Burger King had 264 accurate orders and 54 that were not accurate.

Therefore, total = 264 + 54 = 318

We can use here confidence interval formula

Where, Z is 2.58 for 99% confidence interval.

NORMSINV(1-(0.01/2))................................Z critical value by using Excel command.

Therefore,

=>(0.1155, 0.2241)

Therefore, we are 99% confident that true proportion/percentage of orders that are not accurate is between 11.55% to 22.41%

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Accuracy of Fast Food Drive-Through Orders In a study of Burger King drive-through orders, it was...
Accuracy of Fast Food Drive-Through Orders In a study of Burger King drive-through orders, it was found that 284 orders were accurate and 47 were not accurate. For McDonald’s, 319 orders were found to be accurate while 29 orders were no taccurate (based on data from QSR magazine). Use a 0.01 significance level to test the claim that Burger King and McDonald’s have the same accuracy rates. Round to 3decimal places. (a) Test the claim using a hypothesis test. Identify...
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 220 accurate...
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 220 accurate orders and 71 that were not accurate . a. Construct a 90​% confidence interval estimate of the percentage of orders that are not accurate.
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 268 accurate...
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 268 accurate orders and 65 that were not accurate. a. Construct a 95 ​% confidence interval estimate of the percentage of orders that are not accurate. A)   _____ < p < _____
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 208208 accurate...
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 208208 accurate orders and 7272 that were not accurate. a. Construct a 9595​% confidence interval estimate of the percentage of orders that are not accurate. b. Compare the results from part​ (a) to this 9595​% confidence interval for the percentage of orders that are not accurate at Restaurant​ B: 0.2350.235less than
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 267 accurate...
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 267 accurate orders and 72 that were not accurate. a. Construct a 90​% confidence interval estimate of the percentage of orders that are not accurate. b. Compare the results from part​ (a) to this 90​% confidence interval for the percentage of orders that are not accurate at Restaurant​ B: 0.1950 <0.262 What do you​ conclude?
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 221 accurate...
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 221 accurate orders and 64 that were not accurate. a. Construct a 95​% confidence interval estimate of the percentage of orders that are not accurate. b. Compare the results from part​ (a) to this 95​% confidence interval for the percentage of orders that are not accurate at Restaurant​ B: 0.196<p<0.304. What do you​ conclude?
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 296 accurate...
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 296 accurate orders and 61 that were not accurate. a. Construct a 95​% confidence interval estimate of the percentage of orders that are not accurate. b. Compare the results from part​ (a) to this 95​% confidence interval for the percentage of orders that are not accurate at Restaurant​ B: 0.154 < p < 0.225. What do you​ conclude?
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 210 accurate...
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 210 accurate orders and 67 that were not accurate. a. Construct a 90​% confidence interval estimate of the percentage of orders that are not accurate. b. Compare the results from part​ (a) to this 90% confidence interval for the percentage of orders that are not accurate at Restaurant B: 0.222 <p< 0.307. What do you conclude?
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 206 accurate...
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 206 accurate orders and 57 that were not accurate. a. Construct a 95​% confidence interval estimate of the percentage of orders that are not accurate. b. Compare the results from part​ (a) to this 95​% confidence interval for the percentage of orders that are not accurate at Restaurant​ B: 0.198less thanpless than0.299. What do you​ conclude?
In a study of the accuracy of fast food drive-through orders, Restaurant A had 285 accurate...
In a study of the accuracy of fast food drive-through orders, Restaurant A had 285 accurate orders and 63 that were not accurate. a. Construct a 95% confidence interval estimate of the percentage of orders that are not accurate. b. Compare the results from part (a) to this 95% confidence interval for the percentage of orders that are not accurate at Restaurant B: 0.167<p<0.241. What do you conclude?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT