Economics 91
Linus Yamane
Spring 2006
Pitzer College
Confidence Intervals and Hypothesis Testing
1. The population of starting salaries for Pitzer graduates is known to have a standard deviation
of $3,800. How big a sample is needed to estimate the mean s
Economics 91
Linus Yamane
Spring 2013
Pitzer College
Problem Set #1
1. The Claremont Colleges report a total of 5,729 undergraduate students. Of this total, 1586
attend Pomona, 1301 attend CMC, 1099 attend Pitzer, 966 attend Scripps, and 777 attend HMC.
U
Economics 91
Linus Yamane
Spring 2010
Pitzer College
Regression
1. Suppose a real estate broker wishes to build a predictive model evaluating the price of
coastline housing tracts in southern California. From county records, she obtains a random
sample of
Economics 91
Linus Yamane
Spring 2010
Pitzer College
Probability Distributions
1. Assuming that the conditions of a Bernoulli process are met, determine the following:
a. A test is administered 10 times and the probability of getting the correct answer is
Economics 91
Linus Yamane
Spring 2010
Pitzer College
Probability Rules
1. A medical laboratory received a shipment of 16 microscopes of which (unbeknownst to the
lab) 4 were defective. If a random sample of 3 were taken without replacement, what would be