1.To test whether manufacturing cost can be predicted by labor cost, the best scale of measurement for the data is:

Select one:

a.Ordinal

b.Nominal

c.Interval

d.Ratio

2.My hypothesis is that my company would be more profitable if better training reduced the rate of defective products produced. I believe there is sufficient evidence to support my claim. I would expect the slope of the regression equation to be:

Select one:

a.Negative

b.Horizontal

c.Vertical

d.Positive

3.My hypothesis is that employee satisfaction is related to the number of overtime hours that employees work per week. To test this claim I should:

Select one:

a.

Conduct a one-tailed hypothesis test to assess the amount of variation innumber of hours worked that can be predicted by employee satisfaction

b.

Conduct a one-tailed hypothesis test to assess the amount of variation in employee satisfaction that can be predicted by number of hours worked

c.Conduct a two-tailed hypothesis test to assess the amount of variation in employee satisfaction that can be predicted by number of hours worked

d.Conduct a two-tailed hypothesis test to assess the amount of variation innumber of hours worked that can be predicted by employee satisfaction