In a study of the accuracy of fast food drive-through orders, Restaurant A had 306 accurate orders and 74 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:0.178

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Author:Amos Gilat
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In a study of the accuracy of fast food drive-through orders, Restaurant A had 306 accurate orders and 74 that were not acurate
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:0.178<p<0,254. What do you
conclude?
a. Construct a 95% confidence interval. Express the percentages in decimal form.
<p< (Round to three decimal places as noeded)
b. Choose the correct answer below.
OA No conclusion can be made because not enough information is given about the confidence interval for Restaurant B.
OB. The lower confidence limit of the interval for Restaurant Bis higher than the lower confidence limk 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.
OC. Since the uppet confidence limit of the interval for Restaurant Bis 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.
D. Since the two confidence intervals overlap, neither restaurant appears to have a significantly diferent percentage of orders that are not accurate
Transcribed Image Text:In a study of the accuracy of fast food drive-through orders, Restaurant A had 306 accurate orders and 74 that were not acurate 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:0.178<p<0,254. What do you conclude? a. Construct a 95% confidence interval. Express the percentages in decimal form. <p< (Round to three decimal places as noeded) b. Choose the correct answer below. OA No conclusion can be made because not enough information is given about the confidence interval for Restaurant B. OB. The lower confidence limit of the interval for Restaurant Bis higher than the lower confidence limk 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. OC. Since the uppet confidence limit of the interval for Restaurant Bis 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. D. Since the two confidence intervals overlap, neither restaurant appears to have a significantly diferent percentage of orders that are not accurate
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