There are two approaches to making a decision in a hypothesis test once the test statistic has been calculated. One approach is the rejection region method. The other approach is the ____________________ method.
Fill in the blank(s) with correct word
Q. 2To apply the Wilcoxon rank sum test to determine whether the location of population 1 is different from the location of population 2, the samples must be:
a. larger than 30 c. drawn from normal populations.
b. independent. d. drawn from matched pairs experiment.
Q. 3There are two approaches to making a decision in a hypothesis test once the test statistic has been calculated. One approach is the ____________________ method. The other approach is the p-value method.
Fill in the blank(s) with correct word
Q. 4Nonparametric methods are designed to test ordinal data.
Indicate whether the statement is true or false
Q. 5The owner of a local Karaoke Bar has recently surveyed a random sample of n = 300 customers of the bar. She would now like to determine whether or not the mean age of her customers is over 35 . If so, she plans to alter the entertainment to appeal to an older crowd. If not, no entertainment changes will be made. If she wants to be 99 confident in her decision, what rejection region she use if the population standard deviation is known?
a. Reject H0 if z < -2.33
b. Reject H0 if z < -2.58
c. Reject H0 if z > 2.33
d. Reject H0 if z > 2.58
Q. 6To apply the Wilcoxon rank sum test to determine whether the location of population 1 is different from the location of population 2, the samples must be independent.
Indicate whether the statement is true or false
Q. 7The numerical quantity computed from the data that is used in deciding whether to reject H0 is the:
a. significance level.
b. critical value.
c. test statistic.
d. parameter.
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