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In a study of the accuracy of fast food drive-through orders, RestaurantA had 315 accurate orders a. Construct a 95% confidence interval estimate of
In a study of the accuracy of fast food drive-through orders, RestaurantA had 315 accurate orders 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 centa e of orders th a. Construct a 95% confidence interval. Express the percentages in decimal form. < P < (Round to three decimal places as needed.) b. Choose the correct answer below. No conclusion can be made because not enough information is given about the confidence interval for Restaurant o 174 < < o Since the two confidence intervals overlap, neither restaurant appears to have a significantly different percentage of orders that are not accurate. 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 RestaurantA, this indicates that Restaurant 8 has a significantly higher percentage of orders that are not accurate The lower confidence limit of the interval for Restaurant B is higherthan the lower confidence limit ofthe interval for Restaurant A and the upper confidence limit of the interval for Restaurant a is also higher than the upper confidence limit of the interval for RestaurantA. Therefore, Restaurant 8 has a significantly higher percentage of orders that are not accurate.
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