car price vs. student gpa: is there a correlation?
DESCRIPTION
Car price vs. Student GPA: Is there a correlation?. Group 9 Traci Mecham Kristina Hight Jonathan Fisher Morgaine Abawi Kiffen Davis. For Salt Lake Community College students who own a car, is the price for their car related to their GPA?. Data Collection. - PowerPoint PPT PresentationTRANSCRIPT
Car price vs. Student GPA:Is there a correlation?
Group 9Traci MechamKristina HightJonathan FisherMorgaine AbawiKiffen Davis
For Salt Lake Community College students who own a car, is the price
for their car related to their GPA?
Sampling Method: Simple Random
Strata: Jordan, Taylorsville and South City Campuses◦ 50 samples from each
campus. Price of car recorded as
price paid when purchased and current GPA was used.
Data Collection
Well over half of the students had cars in the < $20,000 range
Only a very small number had cars costing over $30,000
Price of Car Histogram
Car Price Box PlotAs you can see the box plot is skewed heavily to the
right, due to the high number of relatively moderate priced vehicles in conjunction with a few in the higher price range.
The mean price of a car was $12,523 while the range was over $50,000
Price of car stats
The ranges with the most students were 3.0-3.24 3.5-3.74
The majority were over 3.0.
GPA Histogram
GPA Box Plot
This box plot is skewed to the left due to infrequency of students with a low GPA
Grade Point Average Stats
The mean GPA was 3.36, and ranged from 2.0 to 4.0
Avg. Car Price, GPA, Sample Size
• The bar series represents the Avg. Car Price of students with the specified GPA• The line series represents the number of samples collected for the GPA• The error bars represents the standard deviation of Car Prices across all sample GPAs
2.25 2.5 2.75 3 3.25 3.5 3.75 4$0.00
$2,000.00
$4,000.00
$6,000.00
$8,000.00
$10,000.00
$12,000.00
$14,000.00
$16,000.00
0
10
20
30
40
50
60
Car Price, GPA - Scatterplot
• Each plot point on the graph represents a survey sample• Samples are distributed by the Car Price on the Y-axis and the GPA on the X-axis
2 2.5 3 3.5 4 4.5 $-
$10,000.00
$20,000.00
$30,000.00
$40,000.00
$50,000.00
$60,000.00
f(x) = − 358.298668088054 x + 13032.2645723559
Car Price - GPA
Car Price
Linear (Car Price)
Our study was unable to find any correlation between the GPA and price of vehicle for Salt Lake
City Community College students and concludes that the two variables appear to be unrelated
RESULTS