The higher the value of the coefficient of determination, the greater the evidence for a causal ...

The higher the value of the coefficient of determination, the greater the evidence for a causal relationship between x and y.
  1.True
  2.False

Q. 2

The slopes of the least squares lines for predicting y from x, and the least squares line for predicting x from y, are equal.
  1.True
  2.False

Q. 3

The slope of the least squares line is the average amount by which y increases as x increases by one unit.
  1.True
  2.False

Q. 4

If r is close to 1, then the points lie close to a straight line with a positive slope.
  1.True
  2.False

Q. 5

The value of Pearson's r is always between 0 and 1.
  1.True
  2.False

Q. 6

Pearson's correlation coefficient, r, does not depend on the units of measurement of the two variables.
  1.True
  2.False

Q. 7

If on average y increases as x increases, the correlation coefficient is positive.
  1.True
  2.False

Q. 8

How can the company do this and obtain dependent samples? Explain in detail.