Question: The manager of Colonial Furniture has been reviewing weekly advertising expenditures, and assessing their impacts. During the past 6 months, the store has placed a varying number of ads in local newspapers. The number of ads per week has varied from 1 to 7, and the staff in the store has been keeping track of the number of customers who enter the store each week. These data are stored in the file Colonial.xlsx, shown below

:

a) Plot the data. Does anything about your plot trigger the “Taylor Inter-ocular Impact Test”? (i.e. does anything strike you between the eyes about this data?

b) Is there a relationship between number of customers visiting the store and number of ads run?

c) From your analysis, what is the average number of customers that the store can expect when 4 ads are placed? (Give a confidence interval). What can the store expect for a specific week in which 4 ads are placed? (Again, provide a confidence interval.)