Author Question: If the value of the sample mean is close enough to the hypothesized value 0 of the population mean ... (Read 25 times)

jenna1 · **on:** Jun 24, 2018

If the value of the sample mean is close enough to the hypothesized value 0 of the population mean , then:
a. the value of 0 is definitely correct.
b. the value of 0 is definitely wrong.
c. we reject the null hypothesis.
d. we cannot reject the null hypothesis.

Question 2

Discuss briefly the procedure that is employed in the building of a model.

momtoalll · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

D

Answer to Question 2

a . Clearly define the dependent variable that you wish to analyze or predict.
b. Using your knowledge of the dependent variable, produce a list of predictors that may be related to the dependent variable.
c. Gather the required observations (at least 6 for each independent variable used in the equation) for the potential models.
d. Use your knowledge of the dependent variable and predictor variables to identify and formulate several possible models.
e. Use statistical software to estimate the possible models.
f. Determine whether the required conditions are satisfied. If not, attempt to correct the problem. At this point, you may have several equal models from which to choose.
g. Use your judgment and the statistical output to select the best model.