Regression analysis was applied between sales (in 1000s) and advertising (in 100s), and the following regression function was obtained. y = 80 + 6.2x Based on the above estimated regression line, if advertising is 10,000, then the point estimate for sales (in dollars) is _____.
a. 62,080
b. 142,000
c. 700
d. 700,000
Q. 2When activity times are uncertain, an activity's most likely time is the same as its expected time.
Indicate whether the statement is true or false
Q. 3In regression analysis, if the dependent variable is measured in dollars, the independent variable _____.
a. must also be in dollars
b. must be in some unit of currency
c. can be any units
d. cannot be in dollars
Q. 4A critical activity can be part of a noncritical path.
Indicate whether the statement is true or false
Q. 5A least squares regression line ______.
a. may be used to predict a value of y if the corresponding x value is given
b. implies a cause-effect relationship between x and y
c. can only be determined if a good linear relationship exists between x and y
d. All of the answers are correct.
Q. 6A path through a project network must reach every node.
Indicate whether the statement is true or false
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