(Answered) Travel and transportation amtrak would like to estimate the

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Travel and Transportation Amtrak would like to estimate the proportion of travelers on the Sunset Limited, from New Orleans to Los Angeles, who utilize the Sightseer Lounge en route. At the end of the trip on March 15, an Amtrak representative stopped every third person getting off the train and asked them if they used the Sightseer Lounge to buy food, a drink, or souvenirs.

a. Is this an observational or an experimental study?

b. Describe the sample in this problem.

c. Is this a random sample? If not, suggest a method for obtaining a random sample.

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