Elizabeth Burke wants some detailed statistical information about much of the data in the PLE database. In

Question:

Elizabeth Burke wants some detailed statistical information about much of the data in the PLE database. In particular, she wants to know the following:

a. The mean satisfaction ratings and standard deviations by year and region in the worksheets Dealer Satisfaction and End User Satisfaction

b. A descriptive statistical summary for the 2012 customer survey data

c. How the response times differ in each quarter of the worksheet Response Time

d. How defects after delivery (worksheet Defects after Delivery) have changed over these 5 years

e. How sales of mowers and tractors compare with industry totals and how strongly monthly product sales are correlated with industry sales Perform these analyses and summarize your results in a written report to Ms. Burke.

Dealer
A dealer in the securities market is an individual or firm who stands ready and willing to buy a security for its own account (at its bid price) or sell from its own account (at its ask price). A dealer seeks to profit from the spread between the...