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Statistics Analysis

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:
o 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.”
o Calculate the mean, standard deviation, skew, 5-number summary, and interquartile range (IQR) for each of the variables.
o 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?
o 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?
o What measure of central tendency is more appropriate to describe “Sales/SqFt”? Why?

Sample Solution

relevant at a time to suit current events. Timing is a key component in disseminating as potential audiences, particularly policymakers, are interested in research that is relevant to current and upcoming events otherwise there is a tendency for any research results that may have been useful become outdated and ultimately ignored. The general public, parents, and importantly adolescent girls (who are central to this research) are attracted to the format of blogs; the non-specialist, informal style of writing would make the information more appealing to these potential audiences. However, one of the difficulties of blogging, as Robb (2014, p.244) discovered whilst disseminating his research on gender identities is “creating an audience for your postings”. The problem of getting the information discovered is difficult and other areas of communication may need to be considered where blogs can be signposted. Twitter is a more accessible social networking site which would present the opportunity to engage and “follow” and be “followed” by people or organisations with similar interests. Contact can be made with fellow researchers, practitioners and members of the public which allows for debate and discussion with a wide and diverse audience. As children are generally found to have greater confidence, knowledge, and interest in social media there is an opportunity here to involve the schoolgirl participants of the research. They could be involved in constructing an online Twitter poll based around the research results. Figure 1. Example of Twitter Poll This would engage users, particularly younger audiences and the general public and provide a good source of feedback. A limit of 140 characters can be restrictive in delivering research fin
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