Q2) (7.5 pts) Multiple Choice Questions
i. (2 pts )Which of the following statements is
INCORRECT concerning the classical hypothesis testing
framework?
a. If the null hypothesis is rejected, the alternative is
accepted.
b. The null hypothesis is the statement being tested
while the alternative encompasses the remaining
outcomes of interest
c. The test of significance and confidence interval
approaches will always give the same conclusion
d. Hypothesis tests are used to make inferences about
the population parameters
ii. (2 pts) In multiple regression problem involving two
independent variables, what can you say about their
relationship if
a. The relationship between is significant
b. The estimated value of increases by an average of 2
units for each increase of 1 unit of , holding constant
c. The estimated value of Y increases by an average of
2 units for each increase of 1 unit of , without regard
to
d. The estimated average value of Y is 2 when equals
zero.
iii. (2 pts) Which of the following is NOT an assumption
required to perform a one-way Analysis of Variance?
a. Independence of Observations
b. Homogeneity of Variance
c. Absence of Multicollinearity
d. Normality of the Sampling Distribution
e. These are all assumptions which must be met in
order to run a one-way ANOVA