The Next Questions Are Based on the Following Information

question 22

Essay

The Next Questions Are Based On The Following Information:
An engineering research center claims that,through the use of a new computer control system,automobiles should achieve,on average,at least an additional 5 miles per gallon of gas.A random sample of 81 automobiles was used to evaluate this product.The sample mean increase in miles per gallon achieved was 4.5,and the sample standard deviation was 2.9 miles per gallon.
-Test the hypothesis at the 5% level.

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Definitions:

Capital Balances

Capital balances refer to the amount of money that the owners or partners have invested in a business, not including any profits or losses that the business may earn or incur.

Net Income

The amount of money that remains from revenues after all expenses, taxes, and costs have been subtracted.

Devotes Full Time

A commitment by an individual or employee to allocate all of their working hours to a specific job or task.

Tangible Assets

Physical and material assets that possess intrinsic value, such as machinery, buildings, and land.