In general, the branches of a decision tree represent acts and states of nature. Indicate whether ...

In general, the branches of a decision tree represent acts and states of nature.
  Indicate whether the statement is true or false

Q. 2

Which of the following statements regarding the chi-squared distribution is true?
 a. The chi-squared distribution is skewed to the right.
  b. All values of the chi-squared distribution are greater than or equal to zero.
  c. The critical region for a goodness-of-fit test with k categories is 2 > 2, k-1, where 2 is the value of the test statistic.
  d. All of these choices are true.

Q. 3

In making decisions, we choose the decision with the largest expected monetary value, or the smallest expected opportunity loss.
  Indicate whether the statement is true or false

Q. 4

A left tail area in the chi-squared distribution equals .99 . For df = 8, the table value equals:
 a. 20.090 c. 2.7326
  b. 3.4895 d. 15.5073

Q. 5

The expected monetary value decision is always the same as the expected opportunity loss decision.
  Indicate whether the statement is true or false

Q. 6

Consider a multinomial experiment with 200 trials, where the outcome of each trial is classified into one of 5 categories. The number of degrees of freedom associated with the chi-squared goodness-of-fit test equals:
 a. 195 c. 5
  b. 40 d. 4