Exam
Name_
MULTIPLECHOICE.Choosetheonealternativethatbestcompletesthestatementoranswersthequestion.
1) Whichofthefollowingsumofsquaresisminimizedbytheleastsquaresmethod?
A) Errorsumofsquares
B) Regres
Midterm 2009 Answers
Question 1:
A business school graduate schedules 7
interviews in a given week. Suppose that the
probability that an individual interview results in a
job offer is 0.40. Assume tha
Exam
Name_
MULTIPLECHOICE.Choosetheonealternativethatbestcompletesthestatementoranswersthequestion.
1) LettherandomvariableZfollowastandardnormaldistribution.Find P(0< Z<0.57).
A) 0.2157
B) 0.7843
C)
Spring2009
Statistics Quiz 1
1. A researcher determines that he needs results from at least 350 subjects to conduct a study. In order to
compensate for low return rates, he mails a survey to 10,000 su
Exam
Name_
MULTIPLECHOICE.Choosetheonealternativethatbestcompletesthestatementoranswersthequestion.
1) Whichofthefollowingstatementsisalwaystrueforanytwoevents A and B definedonasample
spaceS?
A) Thec
Spring2009
Statistics Quiz 1
1. A researcher determines that he needs results from at least 350 subjects to conduct a study. In order to
compensate for low return rates, he mails a survey to 10,000 su
Exam
Name_
MULTIPLECHOICE.Choosetheonealternativethatbestcompletesthestatementoranswersthequestion.
1) Forthefollowingscatterplot,whatwouldbeyourbestestimateofthecorrelationcoefficient?
1)
A) - 1.0
B)
Spring 2009
Statistics Quiz 2
1. (3 points) A consumer research firm conducts a poll of 21,994 people and asks them if they would
purchase a new product. In the sample, 43% of the survey respondents a
Spring 2009
Statistics Midterm
There are 8 questions on the Exam, and some have multiple sub-questions. The number of points awarded
for each question is listed in parentheses next to the question. Fo
Question 1:
A consumer research firm conducts a poll
of 21,994 people and asks them if they
would purchase a new product. In the
sample, 43% of the survey respondents
answered yes, indicating that the