In Order to Estimate the Difference Between the Average Miles

question 121

Short Answer

In order to estimate the difference between the average Miles per Gallon of two different models of automobiles, samples are taken and the following information is collected.
$$\begin{array} { l c r } & \text { Modal A } & \text { Modal B} \\\text { Sample Size } & 60 & 55 \\\text { Sample Mean } & 28 & 25 \\\text { Smple Variance } & 16 & 9\end{array}$$
a. At 95% confidence develop an interval estimate for the difference between the average Miles per Gallon for the two models.
b. Is there conclusive evidence to indicate that one model gets a higher MPG than the other? Why or why not? Explain.

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Definitions:

HIPAA

The Health Insurance Portability and Accountability Act, legislation that provides data privacy and security provisions for safeguarding medical information.

Minimum Necessary

A principle in healthcare and privacy laws requiring the least amount of personal information to be used or disclosed for a specific purpose.

Keyboard

A device with buttons or keys for entering data into a computer or other electronic devices.