QNT/275 Final December 2020

QNT/275 Final December 2020 If you can figure out which of the four questions are wrong, then you can get 100% The regression model y = A + Bx + e is: • a nonlinear model • a deterministic model • a probabilistic model • an exact relationship The mean of a discrete random variable is the mean of its: • frequency distribution • percentage distribution • probability distribution • second and third quartiles The p-value is the: • smallest significance level at which the null hypothesis cannot be rejected • largest significance level at which the alternative hypothesis can be rejected • largest significance level at which the null hypothesis can be rejected • smallest significance level at which the null hypothesis can be rejected A quantitative variable is the only type of variable that can: • be graphed • have no intermediate values • assume numeric values for which arithmetic operations make sense • be used to prepare tables To make tests hypotheses about more than two population means, we use the: • analysis of variance distribution • normal distribution • t distribution • chi-square distribution