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QMB 3200 EXAM QUSTIONS AND ANSWERS 100% ACCURATE
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QMB 3200 EXAM QUSTIONS AND ANSWERS 100% ACCURATEQMB 3200 EXAM QUSTIONS AND ANSWERS 100% ACCURATEQMB 3200 EXAM QUSTIONS AND ANSWERS 100% ACCURATE Describes a model with a few number of terms - ANSWER-Parsimonious model True slope of line in simple linear regression - ANSWER-Beta1 A large samp...

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  • November 4, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • qmb 3200 exam qustions and answers 100 accurate
  • qmb 3200 exam qustions and answers stuvia
  • describes a model with a few number of terms ans

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QMB 3200 EXAM QUSTIONS AND
ANSWERS 100% ACCURATE
Describes a model with a few number of terms - ANSWER-Parsimonious model

True slope of line in simple linear regression - ANSWER-Beta1

A large sample - ANSWER-N greater than 30

# of dumy variables required to represent a QL var at 3 levels - ANSWER-2

Computer software used to generate your project printout - ANSWER-Statistix 9.0

ANOVA - ANSWER-Analysis of Variance

When 2 or more Independent variable are highly correlated - ANSWER-What is
multicollinearty

The coefficient of determination - ANSWER-R^2

The tester's choice, usually .05 - ANSWER-Alpha

A measure of central tendency in the population - ANSWER-Mew

The value of R2 in simple linear regression when x and y are uncorrelated - ANSWER-0

Squared or not, it measures dispersion in the population - ANSWER-Sigma (SD)

Decision made about Ho when alpha exceeds the p-value - ANSWER-Reject Ho

A type II error - ANSWER-Accepting Ho when Ho is false

Rejecting Ho when Ho is true - ANSWER-Type I error

In theory, the proportion of 90% CI's for mean that capture the true mean - ANSWER-
90%

Unobservable regression error - ANSWER-Epsilon -error

# of treatements in ANOVA with 2 factors SEX (M,F) & race (W, NW) - ANSWER-4

Describes a model with a squared term (x2) - ANSWER-Second order model or
quadratic model

, In a general sense, what is a Z-score? - ANSWER-It is a measure of how far from the
mean a value lies, and it is also a measure of how statistically "unusual" an observation
is for a population or sample

When referencing a Chi-Square analysis, the assumption or a large sample is
sufficiently satisfied when: - ANSWER-Expected value in each cell is greater than or
equal to 5

Sum of squared errors - ANSWER-SSE

E(y) - ANSWER-the mean (or, expected value of y)

The null hypothesis for the global F test in regression - ANSWER-Ho: beta 1= beta 2=
beta k=0

A p-value which supports Ha when alpha=.02 - ANSWER-.002

when the relationship between y and x1 depends on x2 - ANSWER-interaction

the object upon which measurements are taken - ANSWER-experimental unit

data sleuth who cant make bricks without clay - ANSWER-Sherlock holmes

Chinese sage who says a picture is worth a 1,000 - ANSWER-Confuscious

Dr. Sinchich says this about a residual plot - ANSWER-no pattern:No problem

From Russia, with theorem - ANSWER-Chebychev

Known as the father of regression for his work with Galton on son's heights - ANSWER-
Pearson

Extrapolation in regression predictions - ANSWER-Predicting outside the data

Start with QN and QN^2 add QL finally add QN*QL interactions - ANSWER-Writing
model 1

Equation of a model with 1 QN and 1 QL that graphs as two nonparallel straight lines -
ANSWER-Beta0 + beta1x1+beta2x2 +beta3x1x2

Divide printout value in half if one tailed leave it alone if two tailed - ANSWER-p-value of
a t-test

Galton's law, it says "tall fathers have shorter sons on average" - ANSWER-Law of
universal regression

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