In a study of the accuracy of fast food drive-through orders, Restaurant A had 209 accurate orders and 57 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: 0.195

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0.222 and 0.324 are incorrect

In a study of the accuracy of fast food drive-through orders, Restaurant A had 209 accurate orders and 57 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: \(0.195 < p < 0.274\). What do you conclude?

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

\[0.222 < p < 0.324\] (Round to three decimal places as needed.)
Transcribed Image Text:In a study of the accuracy of fast food drive-through orders, Restaurant A had 209 accurate orders and 57 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: \(0.195 < p < 0.274\). What do you conclude? --- a. Construct a 90% confidence interval. Express the percentages in decimal form. \[0.222 < p < 0.324\] (Round to three decimal places as needed.)
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