For a sample size of n = 18, a Wilcoxon signed-rank test is to be carried out.
Question:
For a sample size of n = 18, a Wilcoxon signed-rank test is to be carried out. Where T = min(P, N):
a. Find E(7).
b. Find Var(T).
c. Given that the value of T is 59 and that a normal approximation is appropriate, calculate the test statistic to be used.
d. For the given hypotheses, state whether at 5% you would reject or not reject the null hypothesis.
H0: the population medians are equal.
H1: the population medians are not equal.
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a To find ET for a Wilcoxon signedrank test with a sample size of n 18 you would need to know the sp...View the full answer
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Related Book For 
Cambridge International AS & A Level Further Mathematics Coursebook
ISBN: 9781108403375
1st Edition
Authors: Lee Mckelvey, Martin Crozier
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