Name: Statistics 144 Exam 1 October 28, 2009 Please note you have 100 minutes to work on this exam. The exam has 4 problems. PROBLEM 1, (200 points) A list of 468 small 2-year colleges was used to draw a sample of n=100 colleges. The table below gives dat
Course Syllabus Statistics 144, Fall 2009
Meeting time: M - 12:10 to 2:00 pm, W - 12:10 to 1:00 pm in 90 ScoSci
Discussion: W - 1:10 to 2:00 pm in 90 ScoSci
Instructor: Professor Christiana Drake
Oce: 4240 MSB
Phone: 916-715-0742
Oce Hours: MW 3:00-4:00pm
Name:
Statistics 144 Sample Midterm
Fall Quarter 2009
PROBLEM 1
Suppose a population of N = 6 units has the following values y1 = 10, y2 = 6,
y3 = 9, y4 = 11, y5 = 17 and y6 = 14. Suppose, we take a sample of size n = 3
(a) Give the sampling distribution
3.23
Compared to the graph on the left, the graphs on the right are shifted to the left
^ by B1 x
Code used:
numofsim = 500 N = 30 y_bar_30 = rep(0,numofsim) y_reg_30 = rep(0,numofsim) y_bar_60 = rep(0,numofsim) y_reg_60 = rep(0,numofsim)
for(i in 1:numof
Statistics 144 - Assignment 1
Due October 14, 2009
P1: Exercise B2 on page 426
P2: Consider a population of 8 units (x1 , ., x8 ) = (15, 34, 35, 36, 11, 17, 36, 15).
Suppose you take a simple random sample of size 3 with replacement.
a. List all possible