Analysis of test scores part 2
Generated Apr 13, 2015 by shavmiller18
interesting observation steam and leaf: all the stem numbers are in pairs except for the first and last number
boxplot: majority of the test scores seem to be 87.5 which is the median and less.
yes they are correlated, because the quartile are the same.
Result 1: Stem and Leaf Plot [Info]
Variable: test score
Decimal point is 1 digit(s) to the right of the colon. Leaf unit = 1 5 : 5555 6 : 2 6 : 55 7 : 333 7 : 699 8 : 8 : 778888999 9 : 33 9 : 599 10 : 000 
Result 2: Boxplot [Info]
Result 3: Regression test scores by class [Info]
Simple linear regression results:
Dependent Variable: test scores Independent Variable: class test scores = 98.009259  6.8240741 class Sample size: 15 R (correlation coefficient) = 0.55403449 Rsq = 0.30695422 Estimate of error standard deviation: 13.21731 Parameter estimates:
Analysis of variance table for regression model:
