What would a correlation coefficientr = - 0.95indicate?

Select one:

a. There is a moderate negative correlation between four factors

b. There is a strong positive correlation between two factors

c. There is no correlation between four factors

d. There is a strong negative correlation between two factors

A control chart is simply a ________ chart with the addition of two horizontal lines called control limits.

Select one:

a. pareto

b. bar

c. pie

d. line

Which choice represents the strongest linear correlation?

Select one:

a. r = 0.8

b. r = 0

c. r = -1

d. r = 0.1

Using a regression equation to make estimates or predictions based on x-values that are outside the range of the x-values in the data set is called _______?

Select one:

a. Extrapolation

b. Autoregression

c. Interpolation

d. Correlation

For a given set of x and y data values, assume that the regression model assumptions are valid and that a 90% confidence interval for 1 (the slope) is given by (-2.2, -0.1).Which of the following statements is TRUE?

Select one:

a. In the scatterplot of x and y, the values of y tend to decease as the values of x decrease.

b. In the scatterplot of x and y, the values of y tend to increase as the values of x increase.

c. In the scatterplot of x and y, the values of y tend to decrease as the values of x increase.

d. Not enough information to determine nature/direction of data.