Emerida Ortiz
BADM 7070
May 28, 2016
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What did you expect your results to be? Were you surprised or not?
Were your results in line with what the article says about bias in general, or are you different?
Which, if any, of the sources of unintention
Chapter 10: Confidence interval estimation
Interval estimation will always be two-sided
Estimation of Population Mean
o Calculator
Z-test: stat-> z Interval -> enter information
Key identifier: sigma is known, large sample
x Z
Z-Test if sigma is unknown
SESSION7 Exercise Problems
Problem 1
On the basis of past experience, 10% of the bills of a large mail order book company are incorrect. A rondom sample of 10 current bills is selected. What is the probability that at least two bills are correct
This is a
A random varable X is a numerical description of the outcome of an experiment
Football Game
Sample Space S = cfw_W, L
Real-valued space (random variable): X
Probability space, P[X]
Two types of Random Variables
Discrete
The sum of probabilities is 1.0
A b
Prepared by:
Date prepared:
Managing Gasoline Costs
1. Gasoline Cost Comparison for fixed distance
hybrid
non-hybrid
Travel distance in miles
600
600
MPG (miles per gallon)
1
2
# of gallons of gas needed
Cost of 1 gallon of gas
Cost of traveling 600 miles