A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval resulting from examining 738 customers in one fast-food chain's drive-through has a lower bound of 177.5 seconds and an upper bound of 180.9 seconds. What does this mean?---Choose the correct answer below.- **A.** One can be ___% confident that the mean drive-through service time of this fast-food chain is between ___ seconds and ___ seconds.- **B.** One can be ___% confident that the mean drive-through service time of this fast-food chain is ___ seconds.- **C.** There is a ___% probability that the mean drive-through service time of this fast-food chain is between ___ seconds and ___ seconds.- **D.** The mean drive-through service time of this fast-food chain is ___ seconds ___% of the time.

Given Level of significance=0.20 Lower limit=177.5 Upper limit=180.9

Answered: A trade magazine routinely checks the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A 95% confidence interval is constructed in order to estimate the proportion of adults who own an iPhone. The resulting interval has a margin of error of 0.043. Which of the following would be the margin of error for a 90% confidence interval based on the same sample of data?
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