Likelihood Ratio Test
Week 9
Goals:
Hypothesis testing with the likelihood function
Review of Hypothesis Testing
State a null hypothesis H0
A statement about the probability model or a parameter in the
model
Be specic, so it is possible to collect evidenc
Stat 231 Tutorial
Week 2 Solutions
1. Consider the following summary statistics taken from a random sample of n = 16
observations,
n
n
2
yi = 1163.56
yi = 106.27,
i=1
i=1
(a) Find the sample mean and sample standard deviation for this data
(b) If we colle
Stat 231 Tutorial
Week 6 Solutions
1. Consider the cell phone example from Week 2 and 4 tutorials. We have previously
seen that a Geometric model appears to t the data. The number of drops for the ith
cell phone to break is recorded as yi (i=1.50) and the
STAT 231-LECTURE 1
Introduc6on
Examples of Sta6s6cal Applica6ons:
From the trivial to the profound
Where have all the 400 hiHers gone?
Gould, Full House,
Ted Williams-Joe DiMaggio
Are experts actually exper