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Describes t a t model t with t a t few t number t of t terms t - t correct t answer t Parsimonious t model True t slope t of t line t in t simple t linear t regression t - t correct t answer t Beta1 A t large t sample t - t correct t answer t N t greater t than t 30 # t of t dumy t variables t required t to t represent t a t QL t var t at t 3 t levels t - t correct t answer t 2 Computer t software t used t to t generate t your t project t printout t - t correct t answer t Statistix t 9.0 ANOVA t - t correct t answer t Analysis t of t Variance When t 2 t or t more t Independent t variable t are t highly t correlated t - t correct t answer t What t is t multicollinearty The t coefficient t of t determination t - t correct t answer t R^2 The t tester's t choice, t usually t .05 t - t correct t answer t Alpha A t measure t of t central t tendency t in t the t population t - t correct t answer t Mew The t value t of t R2 t in t simple t linear t regression t when t x t and t y t are t uncorrelated t - t correct t answer t 0 Squared t or t not, t it t measures t dispersion t in t the t population t - t correct t answer t Sigma t (SD) Decision t made t about t Ho t when t alpha t exceeds t the t p-value t - t correct t answer t Reject t Ho A t type t II t error t - t correct t answer t Accepting t Ho t when t Ho t is t false Rejecting t Ho t when t Ho t is t true t - t correct t answer t Type t I t error In t theory, t the t proportion t of t 90% t CI's t for t mean t that t capture t the t true t mean t - t correct t answer t 90%

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Uploaded on
December 27, 2024
Number of pages
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Written in
2024/2025
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QMB 3200 EXAM 2024/2025 WITH 100% CORRECT
ANSWERS




Describes a model with a few number of terms - correct answer Parsimonious model
t t t t t t t t t t t t t




True slope of line in simple linear regression - correct answer Beta1
t t t t t t t t t t t




A large sample - correct answer N greater than 30
t t t t t t t t t




# of dumy variables required to represent a QL var at 3 levels - correct answer 2
t t t t t t t t t t t t t t t t




Computer software used to generate your project printout - correct answer Statistix 9.0
t t t t t t t t t t t t




ANOVA - correct answer Analysis of Variance
t t t t t t




When 2 or more Independent variable are highly correlated - correct answer What is multicollinearty
t t t t t t t t t t t t t t

, The coefficient of determination - correct answer R^2
t t t t t t t




The tester's choice, usually .05 - correct answer Alpha
t t t t t t t t




A measure of central tendency in the population - correct answer Mew
t t t t t t t t t t t




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




Squared or not, it measures dispersion in the population - correct answer Sigma (SD)
t t t t t t t t t t t t t




Decision made about Ho when alpha exceeds the p-value - correct answer Reject Ho
t t t t t t t t t t t t t




A type II error - correct answer Accepting Ho when Ho is false
t t t t t t t t t t t t




Rejecting Ho when Ho is true - correct answer Type I error
t t t t t t t t t t t




In theory, the proportion of 90% CI's for mean that capture the true mean - correct answer 90%
t t t t t t t t t t t t t t t t t




Unobservable regression error - correct answer Epsilon -error t t t t t t t




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




Describes a model with a squared term (x2) - correct answer Second order model or quadratic model
t t t t t t t t t t t t t t t t




Sum of squared errors - correct answer SSE
t t t t t t t




E(y) - correct answer the mean (or, expected value of y)
t t t t t t t t t t




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