EXAMPLES CHI-SQUARE AND LINEAR REGRESSION
INFERENCE
Multiple Choice Examples:
1. Which of the following is not true of the 2 probability density function?
A) For small degrees of freedom, the curve displays right-skewness.
B) As the degrees of freedom inc
IS310 Fall 2015 - EXAM 1 60 minutes VERSION B (mark B on your scantron)
Open Chapter 0 PPT with your own hand-written notes on it. Calculator allowed.
No laptop, no phone (even used as a calculator).
NAME _
1. PIN (personal identification) number is
a. No
IS310 - EXAM 3 Practice 2
1. Stratified random sampling is a method of selecting a sample in which
a. the sample is first divided into strata, and then random samples are taken from each
stratum
b. various strata are selected from the sample
c. the popula
IS310 Fall 2015 Exam 2 Version A (75 minutes)
Chapter 0 PPT with your own hand-written notes on it. Chapter Reviews 3, 4 and 5.
Probability tables and calculator allowed. No laptop, no phone (even if used as calculator)
Name _KEYS_
(1 point deduction if n
IS310 Summer 2016 - EXAM 3 75 minutes VERSION A (mark A on your scantron)
Open Chapter 0 PPT with your own hand-written notes on them. Probability tables
allowed. Calculator allowed. No laptop, no phone (even used as a calculator).
1.
2.
3.
4.
5.
6.
7.
NA
VERSION A - IS310 EXAM 3 (80 minutes) Open notes (Chapter 0 PPT with your own written
notes on it), 2 probability tables (standard normal and t-distribution) & calculator. No phone/laptop. I
will go around and check your open notes. PLEASE DO NOT use any
As mentioned in the question,
= 50.27 (Average or say mean of the distribution+
= 12.41 (Standard deviation)
Now, we need to find % of students between 50.27 18.21
i.e. 50.27 1.5 (12.41)
i.e. mean 1.5
As per Chebyshevs Theorem,
100 * ( 1- (1/k2).
Here,