In order to estimate the difference between the average daily sales of two branches of a department store, the following data has been gathered. 
a.Determine the point estimate of the difference between the means.
b.Determine the degrees of freedom for this interval estimation.
c.Compute the margin of error.
d.Develop a 95% confidence interval for the difference between the two population means.
Definitions:
Monetary Forecasts
Predictions regarding the future financial state or economic conditions of a business or the economy, based on current trends and data.
Investment Decisions
The process of deciding where to allocate funds in order to generate the highest possible returns while managing risks.
Shareholder Relations
Activities and policies used by a corporation to communicate, engage, and manage its relationship with its shareholders.
Chief Financial Officer
A senior executive responsible for managing the financial actions of a company, including financial planning and record-keeping.
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