In a study of the accuracy of fast food drive-through orders, Restaurant A had 322 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: 0.174

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In a study of the accuracy of fast food drive-through orders, Restaurant A had 322 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: 0.174 <p<0.233. 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.
O A. No conclusion can be made because not enough information is given about the confidence interval
for Restaurant B
O B. 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.
O C. Since the two confidence intervals overlap, neither restaurant appears to have a significantly different
percentage of orders that are not accurate.
O D. 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.
Click to select vour answer(s).
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Transcribed Image Text:In a study of the accuracy of fast food drive-through orders, Restaurant A had 322 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: 0.174 <p<0.233. 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. O A. No conclusion can be made because not enough information is given about the confidence interval for Restaurant B O B. 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. O C. Since the two confidence intervals overlap, neither restaurant appears to have a significantly different percentage of orders that are not accurate. O D. 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. Click to select vour answer(s). Exit Honorlock app.honorlock.com is sharing your screen. Stop sharing Hide 33283.xlsx 22 MacBook Air 吕口 F5 F7 F8 F9 23 24 4 & * 3 5 7 8 9 E R T Y F G K * CO D.
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