MATH 3339 final Exam Questions with Correct Answers Latest Update

MATH 3339 final Exam Questions with Correct Answers Latest Update r close to 1 - Answers strong linear relationship r close to 0 - Answers no linear relationship at 0. near 0 is weak linear relationship In the regression equation y = b0 + b1x, identify what b0 and b1 represent. Which of these will best explain the relationship between x and y - Answers bo represents the y intercept. and b1 represents the slope of the line. the slope will best explain the relationship because for every 1 x goes up then y goes up b1. conditional probability - Answers P(a&b)/P(b) to find a zscore corresponding to a percentile - Answers qnorm(.percentile) standard error - Answers sqrt(p(1-p)/n) pvalue for t test stastic - Answers qt(t value,df) verify that its a binomial experiment - Answers -success or fail only -fixed # of trials -outcomes are independent r studio commands for binomial experiments p(x=k) p(x<=k) p(x>k) - Answers dbimon(k,n,p) pbinom(k,n,p) 1-pbinom(k,n,p) k= the outcome n=number of trials p=probability anova table - Answers df. ss ms f treatments I-1 SSTr MSTr MSTr/MSE error I(J-1) SSE MSE total IJ-1 SST MSTr - Answers SSTr/(I-1)