You want to enter a dog contest and, since you don\'t have a dog, you go to your

Question

You want to enter a dog contest and, since you don't have a dog, you go to your friendly "Rent a Pet Center" for a canine to work with you in the contest. The dog will need to go through an obstacle course quickly and accurately in order to win. There are two dogs to choose from. The manager says Spot has an average (mean) time of 6:00 minutes for completing that obstacle course and Fido has an average (mean) time of 7:00 minutes. But you know that the Mean itself is never enough. So, what are two (2) more STATISTICS that you want to know in order to put the Mean in appropriate context? Identify each and explain how each will influence your decision.

Explanation / Answer

I would first like to know what the frequency of observations for Spot and Fido are. The number of times their speed has been tested would allow me to understand if the data size for both their speed is sufficiently large enough to produce a reliable mean. I would also like to know the standard deviation as it would allow me to make inferences about the variability that can be expected in their performance.

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