Carrie works 40 hours. she spends 15% of her time at the register, 30% of her time greeting customers, and the remainder of the
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Answer: (a)
(b) Restaurant B has a significantly lower percentage of orders that are not accurate.
Step-by-step explanation:
Confidence interval for population proportion is given by :-
Given: Significance level :
Critical value :
For Restaurant A , The proportion of orders not accurate :
Then , the Confidence interval for population proportion will be :-
Also, 95% confidence interval for the percentage of orders that are not accurate at Restaurant B:
By comparing both the lower confidence limit and upper confidence limit of the interval for Restaurant B is lower than the lower confidence limit of t and the upper confidence limit of the interval for Restaurant A.
Therefore, Restaurant B has a significantly lower percentage of orders that are not accurate.
Answer:
Step-by-step explanation:
y≈30100
