A Company Claims That You Can Expect Your Car to Get

question 3

Essay

A company claims that you can expect your car to get one mpg better gas mileage while using their gasoline additive.A magazine did a study to find out how much a car's gas mileage improved while using the gasoline additive.The study used 36 cars and recorded the average mpg with and without the additive for each car in the study.The cars with the additive averaged 1.20 mpg better than without and had a variance of 0.36 (mpg)².
A)Specify the competing hypotheses to determine if the gasoline additive improved gas mileage by at least one mpg.Use the matched-pairs sampling.
B)Calculate the value of the test statistic and p-value.
C)Make a conclusion at the 5% significance level.

• A)Specify the competing hypotheses to determine if the gasoline additive improved gas mileage by at least one mpg.Use the matched-pairs sampling.
• B)Calculate the value of the test statistic and p-value.
• C)Make a conclusion at the 5% significance level.

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Definitions:

Unionism

The principles, practices, or system of forming, joining, and operating trade unions to protect and improve workers' rights and conditions.

Equity

A principle of fairness in treatment and distribution of resources, or ownership interest in a company through shares.

United Farm Workers

A labor union for farmworkers in the United States that advocates for improved working conditions, wages, and benefits for agricultural workers.

Nationwide Boycotts

Organized refusal to buy or use products and services across an entire country to protest policies or practices considered objectionable.