Statistics and Sampling Methods: Application and Analysis

A discussion on various statistical sampling methods and their real-world applications.

Aiden Campbell

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Statistics and Sampling Methods: Application and AnalysisQ U E S T I O N 11.Car washwaiting times at the localconvenience storefollow a uniform distribution.The wait timeranges from 0-16 minutes.What is the mean waiting time at the car wash?a.4minutesb.8 minutesc.3 minutesd.7minutes10pointsQ U E S T I O N 21.The mean of a normal distribution of a set of truck tiresis 300 pounds with a standard deviation of 10pounds.What is the probability of a randomly selectedset oftiresweighing between 300 and 330pounds?a.0.1450b.0.4987c.0.4772d.0.333110pointsQ U E S T I O N 31.A study of customer service phone calls indicates the callsaverage20 minutes.The standarddeviation equaled 5 minutes.Assuming that the distribution is normal, what percent of the calls tooklonger than 10minutes to complete?a.84.13%b.34.13%c.97.72%

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