STAT 200 ELEMENTARY STATISTICS-LAB 10

STAT 200 ELEMENTARY STATISTICS-LAB 10 1. Open the dataset Spring17Data.MTW. These data were collected from a sample of World Campus STAT200 students in Spring 2017. Assume this sample is representative of the population of all World Campus STAT 200 students. We want to know if students who prefer beer, water, or wine differ in terms of average height. [70 points] A. Why is a one-way ANOVA an appropriate statistical procedure for this scenario? (4) Since this data has more than more three independent (unrelated) groups, and we wish to know the statistically significance differences between those means the one way analysis of variance is perfect to determine this. B. Has the assumption of equal variances been met? Show how you checked for this. (4) “This can be evaluated by using the following rule of thumb: if the largest sample standard deviation divided by the smallest sample standard deviation is not greater than two, then assume that the population variances are equal.