YouTube Would Like to Test the Hypothesis That the Average

question 73

Multiple Choice

YouTube would like to test the hypothesis that the average length of an online video watched by a user is more than 8 minutes. A random sample of 37 people watched online videos that averaged 8.7 minutes in length. It is believed that the population standard deviation for the length of online videos is 2.5 minutes. YouTube would like to set α = 0.02. The correct hypothesis statement for this hypothesis test would be ________ .

• A)H₀: µ = 8.0; H₁: µ × 8.0
• B)H₀: µ c 8.0; H₁: µ < 8.0
• C)H₀: µ × 8.0; H₁: µ = 8.0
• D)H₀: µ c 8.0; H₁: µ > 8.0

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Definitions:

Demand

The desire to own goods or services combined with the ability and willingness to pay for them.

Demand Curve

A curve on a graph that exhibits the quantity of a good that consumers are prepared to buy at different prices.

Income

Regular earnings from employment or investment returns.

Product

An item that is created through a process and is offered for sale to consumers in the market.