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STAT 3480 Homework 02
Maxwell Chang
Problem 01, Textbook 2.1
If were given two groups of 4 from 8 distinct observations, where group 1 is given treatment 1 and group 2 is
given treatment 2, and we want to find treatment 1 observation > treatment 2:
H0 : u

STAT 3480: Lab 07 Summary
Maxwell Chang (mhc8bf)
Part 1
In evaluating whether theres a relationship between movie rating and score on rottentomatoes.com, we first
performed a Kruskal-Wallis test as a sort of exploratory technique. The Kruskal-Wallis test

STAT 3480: Lab 07
Maxwell Chang (mhc8bf)
Part 1
choose(4,2)
# [1] 6
If we have 4 groups (i.e. G, PG, PG-13, R), we will have 6 pairwise combinations. In general, if we have K
treatment groups, well have a total of (K, 2) combinations (K choose 2).
Part 2

Lab 02
Maxwell Chang
Problem 1
day_1 = 147.8 #Unseeded
day_2 = 489.1 #Seeded
day_3 = 119.0 #Seeded
small_seeded = c(day_2, day_3)
original = print(mean(small_seeded) - day_1)
# [1] 156.25
While there is a difference between the two groups, it should be no

Homework 03
Maxwell Chang
February 25, 2016
Section 2.9 of the textbook deals with selection of two-sample test.
Youd select a t-test if the CDF of the two samples are normal with uknown but equal variances to test for
differences between two means. The t