An NHL executive says that players who incur penalty time during a game have a median time of 1.2 minutes in the penalty box. A random sample of 28 hockey players with penalty time produced 24 non-zero differences when a Wilcoxon signed rank test was used. The W (R+) equaled 156.5 . The alternate hypothesis is m 1.2 minutes. Assume the population is symmetrically distributed. The computed test statistic in this instance equals:
a. 156.5.
b. 0.186.
c. 6.5.
d. 35.
e. 143.5.
Question 2
The Wilcoxon signed rank test assumes sample data to be
a. continuous with either nominal or ordinal measurement scale.
b. continuous with either interval or ratio measurement scale.
c. discrete with either nominal or ordinal measurement scale.
d. discrete with either interval or ratio measurement scale.
e. continuous with any measurement scale.
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