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In: Statistics and Probability

A. Suppose you want to study the number of hours of sleep full-time undergraduate students at...

A. Suppose you want to study the number of hours of sleep full-time undergraduate students at Belmont get each evening. To do so, you obtain a list of full-time undergraduate students at Belmont, obtain a simple random sample of ten students, and ask each of them to disclose how many hours of sleep they obtained the most recent Monday.

  1. What is the population of interest in this study? What is the sample?

  2. Explain why number of hours of sleep in this study is a random variable.

  3. After you obtain your ten observations, you compute the mean number of hours of sleep. Is

    this a statistic or a parameter? Why?

  4. Is the mean number of hours computed in part (c) a random variable? Why? If it is a random

    variable, what is the source of variation?

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orchestra answered 1 year ago
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