Qnt 561
Autor: Priscilla Goulart-Smith • January 23, 2017 • Research Paper • 328 Words (2 Pages) • 535 Views
Descriptive Statistics and Interpretation
Stephen E. Smith
QNT/561
January 16, 2017
Karri Perez
Descriptive Statistics
Sales (USD)
Distribution: normally distributed
Central Tendency: Mean = $64.24 |
Dispersion: Standard deviation = $12.143 |
Number: 120 |
Min/Max: Min is $32; Max is $86 |
Confidence Interval: $61.42 to 66.02 |
Age
Distribution: normally distributed
Central Tendency: Median = 38 years |
Dispersion: Interquartile Range = 18 years/2 = +/- 9 years |
Number: 120 |
Min/Max: Min is 28years; Max is 48 years |
Confidence Interval: there is no Confidence Interval. |
See the histogram in Appendix A, and scatterplot is in Appendix B. Also, the pie chart on Appendix C.
Sex of Renters
The percentage of females renting the vehicles was 28 percent, while the males renters were 72 percent. The pie chart is in Appendix C.
Descriptive Statistics Interpretation
Sales
The sales of 120 people, arbitrarily selected, were measured. Their sales were observed between $32.00 and $86.00. Sales were broken down as $32.00 being the compact size vehicle on the rental car class and up, and $86.00 was the full-size SUV vehicle rental price. The average sales were $64.24, which was the convertible vehicle, with a standard deviation of $12.14. Roughly half or more of the data values are above $64.24. There is enough indication to say that the population sales amount lies between $61.42 and $66.02 with 95% confidence. This designates both, male and female, tend to rent the convertible or full-size SUV based on the price of the vehicle.
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