The Average American Sees 3

question 59

Essay

The average American sees 3.9 movies at the theater each year. A curious student polls 30 friends and family over the course of a week. He finds that his friends have seen an average of 4.5 movies with a standard deviation of 1.2 movies.
-Does this sample provide evidence that people are attending the movies more often?
Provide a complete significance test to support your answer.

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Definitions:

Fractions

Mathematical expressions representing the division of one integer by another, distinct from zero.

Lowest Terms

A fraction reduced to the lowest terms where the numerator and denominator are the smallest possible numbers that retain the original value.

Fractions

Numerical quantities that represent a part of a whole, commonly expressed with a numerator and a denominator.

Lowest Terms

The most basic version of a fraction, in which both the top and bottom numbers have been minimized to the lowest possible figures.