Efficiency is the ratio of the sample size of the best parametric test to the sample size of the best nonparametric test when compared under a fixed set of risk values.
Indicate whether the statement is true or false
Q. 2A small community college in Ohio has four student organizations (A, B, C, and D). Organization A has 5 students, B has 8, C has 10, and D has 12 . It is thought that new students have no preference for one of these organizations over the other. If seven new students are admitted to the college, what is the probability that one student will choose organization A, one will choose B, two will choose C, and three will choose D?
a. approximately .059
b. .200
c. approximately .243
d. Cannot be determined without additional information.
Q. 3Suppose a 95 confidence interval for the mean height of a 12-year-old male in the United States is 54 to 65 inches. In repeated sampling, 95 of the intervals constructed will contain the interval from 54 to 65 inches.
Indicate whether the statement is true or false
Q. 4The nonparametric methods are also known as distribution-free methods.
Indicate whether the statement is true or false
Q. 5The hypergeometric probability distribution is used rather than the binomial distribution when the sampling is performed:
a. with replacement from a finite population
b. without replacement from a finite population of size N and that size N is small in relation to the sample size n namely, n / N >=.05
c. without replacement from an infinite population
d. with replacement from an infinite population
Q. 6A recent survey indicates that the proportion of season ticket holders for Ferris State University hockey team that renew their seats is about .80 . Using this information, the sample size that is needed to estimate the true proportion that plan to renew their seats using 95 confidence and a margin of error of +.025 is about:
a. 689
b. 697
c. 810
d. 984
e. 1,179
Q. 7When we compare two or more tests, they must be equally qualified for use. That is, each test has a set of assumptions that must be satisfied before it can be applied.
Indicate whether the statement is true or false
Q. 8The hypergeometric probability distribution:
a. provides probabilities associated with possible values of a binomial random variable in situations in which these values are generated by sampling a finite population
b. provides probabilities associated with possible values of a binomial random variable in situations in which sampling is done without replacement
c. provides probabilities associated with possible values of a binomial random variable in situations in which the probability of success changes from one trial to the next
d. is correctly described by all of these
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