In a one-tail test for the population proportion, if the null hypothesis is not rejected when the alternative hypothesis is false, a Type II error is committed.
Indicate whether the statement is true or false
Q. 2Which of the following probability distributions can be used to describe the distribution for a continuous random variable?
a. Binomial distribution
b. Normal distribution
c. Poisson distribution
d. Hypergeometric distribution
e. Both Poisson distribution and Hypergeometric distribution
Q. 3In a two-tail test for the population proportion, if the null hypothesis is rejected when the alternative hypothesis is false, a Type I error is committed.
Indicate whether the statement is true or false
Q. 4Mean, median, and mode are:
a. equal to one another in any Poisson probability distribution
b. equal to one another in any normal probability distribution
c. different measures of center and, therefore, cannot possibly be equal to one another
d. different measures of center, but can equal each other only if the probability distribution is negatively or positively skewed
e. equal to one another in any normal probability distribution and different measures of center and, therefore, cannot possibly be equal to one another
Q. 5When the necessary conditions are met, a two-tailed test is being conducted to test the difference between two population means, but your statistical software provides only a one-tail area of .036 as part of its output. The p-value for this test will be:
a. 0.018
b. 0.009
c. 0.072
d. 0.928
e. 0.964
Q. 6Which of the following is not a characteristic of the normal distribution?
a. It is symmetric.
b. It has a bell-shape.
c. Mean = median = mode.
d. All of these.
e. None of these.
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