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## Week 1 Statistics Analysis

PLEASE REVIEW THE ATTACHMENT FOR REFERENCE TO THIS CURRENT ASSIGNMENT!!!!!!

Review the Wk 2 – Apply: Statistical Report assignment.

In preparation for writing your report to senior management next week, conduct the following descriptive statistics analyses with Microsoft® Excel®. Answer the questions below in your Microsoft® Excel® sheet or in a separate Microsoft® Word document:

• Insert a new column in the database that corresponds to Annual Sales. Annual Sales is the result of multiplying a restaurants SqFt. by Sales/SqFt.
• Calculate the mean, standard deviation, skew, 5-number summary, and interquartile range (IQR) for each of the variables.
• Create a box-plot for the Annual Sales variable. Does it look symmetric? Would you prefer the IQR instead of the standard deviation to describe this variables dispersion? Why?
• Create a histogram for the Sales/SqFt variable. Is the distribution symmetric? If not, what is the skew? Are there any outliers? If so, which one(s)? What is the SqFt area of the outlier(s)? Is the outlier(s) smaller or larger than the average restaurant in the database? What can you conclude from this observation?
• What measure of central tendency is more appropriate to describe Sales/SqFt? Why?

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