Which of the following is an example of a sample statistic?a.)25 random students are asked how much they spent on booksb.)The proportion of the student population who live on campusc.)Standard deviation of tuition costs for all private universitiesd.)Average number of all high school graduates who will attend college
Question
Which of the following is an example of a sample statistic?a.)25 random students are asked how much they spent on booksb.)The proportion of the student population who live on campusc.)Standard deviation of tuition costs for all private universitiesd.)Average number of all high school graduates who will attend college
Solution
The example of a sample statistic from the options provided is a.) 25 random students are asked how much they spent on books.
Here's why:
A sample statistic is a numerical value that describes a characteristic of a sample. The sample is a subset of the population that is being studied. It is a measure that has been calculated from the data of a sample.
a.) 25 random students are asked how much they spent on books - This is a sample statistic because it's a measure (amount spent on books) calculated from a sample (25 random students).
b.) The proportion of the student population who live on campus - This is a population parameter, not a sample statistic, because it's a measure calculated from the entire student population.
c.) Standard deviation of tuition costs for all private universities - This is also a population parameter because it's a measure calculated from all private universities.
d.) Average number of all high school graduates who will attend college - This is another population parameter because it's a measure calculated from all high school graduates.
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