A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval that results from examining 734 customers in one fast-food chain's drive-through has a lower bound of 169.8 seconds and an upper bound of 173.4 seconds. What does this mean? Choose the correct answer below. O A. One can be % confident that the mean drive-through service time of this fast-food chain is between seconds and seconds. O B. There is a % probability that the mean drive-through service time of this fast-food chain is between seconds and seconds. O C. The mean drive-through service time of this fast-food chain is seconds % of the time. O D. One can be % confident that the mean drive-through service time of this fast-food chain is seconds.

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A: Given Data: p^=0.53n=1510   z-value corresponding to 95% Confidence level=1.96

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A:

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A:

Q: A survey found that out of 800 workers, 150 said they were interrupted by frank phone calls. Find…

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A: Given data ,n=90P=70%=0.7The z-value at 90% confidence is1.645=z∝12=1.645

Q: 17. A researcher surveys 50 individuals in Smithville and 40 in Amherst, finding that 30% of…

A: Let n1 be the sample size  in smithville surveys : 50 individuals Let n2 be the sample size in…

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Q: A statistics student wants to conduct a study to determine the proportion of workers in Cititon who…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.