Before the Start of the Winter Olympics, It Was Expected $\alpha$

question 20

Essay

Before the start of the Winter Olympics, it was expected that the percentages of medals awarded to the top contenders to be as follows.
Midway through the Olympics, of the 120 medals awarded, the following distribution was observed. We want to test to see if there is a significant difference between the expected and actual awards given.
a.Compute the test statistic.
b.Using the p-value approach, test to see if there is a significant difference between the expected and the actual values. Let $\alpha$ = .05.
c.At 95% confidence, test for a significant difference using the critical value approach.

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Definitions:

Air Pollution

The presence of substances in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials.

Miles Driven

The total distance traveled by a vehicle, typically measured in miles.

External Benefit

An advantage or positive effect on a third party or society at large, resulting from an economic transaction or activity, not accounted for in the market price.

Supply And Demand

The economic model that determines the price levels of goods and services based on the relationship between the quantity available and the quantity demanded by consumers.