Homework Help is Here – Start Your Trial Now!
Math
Statistics
a. Construct a 90% confidence interval. Express the percentages in decimal form.

a. Construct a 90% confidence interval. Express the percentages in decimal form.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
See similar textbooks
icon
Related questions
Question
Isa
K In a study of the accuracy of fast food drive-through orders, Restaurant A had 333 accurate orders and 74 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: 0.169 <p<0.229. What do you conclude? a. Construct a 90% confidence interval. Express the percentages in decimal form. <p< (Round to three decimal places as needed.) b. Choose the correct answer below. OA. The lower confidence limit of the interval for Restaurant B is higher than the lower confidence limit of the interval for Restaurant A and the upper confidence limit of the interval for Restaurant B is also higher than the upper confidence limit of the interval for Restaurant A. Therefore, Restaurant B has a significantly higher percentage of orders that are not accurate. OB. Since the two confidence intervals overlap, neither restaurant appears to have a significantly different percentage of orders that are not accurate. OC. No conclusion can be made because not enough information is given about the confidence interval for Restaurant B. OD. Since the upper confidence limit of the interval for Restaurant B is higher than both the lower and upper confidence limits of the interval for Restaurant A, this indicates that Restaurant B has a significantly higher percentage of orders that are not accurate. Q Search CEL 10 & hp 99+ f10 N 112 insert Next 10:21 AM 11/12/2023 prt sc backspace
Transcribed Image Text:K In a study of the accuracy of fast food drive-through orders, Restaurant A had 333 accurate orders and 74 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: 0.169 <p<0.229. What do you conclude? a. Construct a 90% confidence interval. Express the percentages in decimal form. <p< (Round to three decimal places as needed.) b. Choose the correct answer below. OA. The lower confidence limit of the interval for Restaurant B is higher than the lower confidence limit of the interval for Restaurant A and the upper confidence limit of the interval for Restaurant B is also higher than the upper confidence limit of the interval for Restaurant A. Therefore, Restaurant B has a significantly higher percentage of orders that are not accurate. OB. Since the two confidence intervals overlap, neither restaurant appears to have a significantly different percentage of orders that are not accurate. OC. No conclusion can be made because not enough information is given about the confidence interval for Restaurant B. OD. Since the upper confidence limit of the interval for Restaurant B is higher than both the lower and upper confidence limits of the interval for Restaurant A, this indicates that Restaurant B has a significantly higher percentage of orders that are not accurate. Q Search CEL 10 & hp 99+ f10 N 112 insert Next 10:21 AM 11/12/2023 prt sc backspace
Expert Solution
steps

Step by step

Solved in 4 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS