IT and Business Applications Lab 3

Assignment 1 A : Given mileage and groove, our hypothesis is that groove affects mileage. Fit LM and comment on its applicability.

From above graphs, it is clear that linear regression model is not applicable.

Assignment 1 B : Given alpha and plutonium, our hypothesis is that plutonium impacts alpha. Fit LM and comment on its applicability.

From above graphs, it is clear that linear regression model is applicable within the range depicted in Normal QQ plot.

Assignment 2 : Determine whether the comfort levels given by different types of chairs are equal, using the ANOVA technique. 

The summary provides a high p-value equal to 0.687, which indicates that the null hypothesis cannot be rejected.