On a December day, the probability of snow is .30 . The probability of a cold day is .50 . The probability of snow and a cold day is .15 . Are snow and cold weather independent events?
a. only if given that it snowed
b. no
c. yes
d. only when they are also mutually exclusive
Question 2
A Type II error is committed when
a. a true alternative hypothesis is mistakenly rejected.
b. a true null hypothesis is mistakenly rejected.
c. the true null hypothesis is correctly rejected.
d. the true alternative hypothesis is correctly rejected.
