Spearman's Rank Practise Questions

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Question 1: Use the Spearman's Rank Correlation to establish whether there is any relationship between the
distance away from school students live and the IB Geography grades they attain.
State your null hypothesis:
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Distance from Rank (r) IB Geography Rank (r) d d²
school (miles) grades attained
3 4
7 4
2 7
2 6
1 5
=
Number of Critical value
paired
measurements
5 1
6 0.89
7 0.79
8 0.74
9 0.68
10 0.65
·
Interpret your test statistic. Use the words probability and chance in your answer:
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Question 2: A wine expert grades 10 bottles of wine on a scale from 0 to 50. He records the results next to
their ages. Use the Spearman's Rank Correlation to perform a statistical test on the results.
State your null hypothesis:

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Wine Age Rank (r) Score Rank (r) d d²
A 15 18
B 21 11
C 24 14
D 28 25
E 30 27
F 34 17
G 36 33
H 40 22
I 42 37
J 44 41
=
Number of Critical value
paired
measurements
5 1
6 0.89
7 0.79
8 0.74
9 0.68
10 0.65
Interpret your test statistic. Use the words probability and chance in your answer:
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Question 3: A teacher asked all her students how many pencils they had and how many rulers they had. She
recorded her results in a table. Use the Spearman's Rank Correlation to perform a statistical test on the results.
State your null hypothesis:
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