Author Question: Which of the following statements is not true? a. The probability of making a Type II error ... (Read 87 times)

DyllonKazuo · **on:** Jun 24, 2018

Which of the following statements is not true?
a. The probability of making a Type II error increases as the probability of making a Type I error decreases.
b. The probability of making a Type II error and the level of significance are the same.
c. The power of the test decreases as the level of significance decreases.
d. All of these choices are true.

Question 2

Which of the following statements is false regarding the graph of the second-order polynomial model y = 0 + 1x + 2x2 + ?
a. If 2 is negative, the graph is concave, while if 2 is positive, the graph is convex.
b. The greater the absolute value of 2, the smaller the rate of curvature.
c. When we plot x versus y, the graph is shaped like a parabola.
d. All of these choices are true.