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Chapter 13
Exercise 1.
i) # Put data in column labelled ‘Income’.
STEST 50 ‘Income’
# Gives p-value of 0.1516. To check p-value, find probability of ‘observed result and of equivalent and more extreme values’ i.e. probability of 0 to 8 and 16 to 24.
CDF 8;
BINOMIAL 24 0.5.
# Double this value, i.e. 2 X 0.0757948 = 0.151590.
ii) # Calculate differences and put in column labelled ‘d’. Do one tail test.
STEST 0 ‘d’;
ALTERNATIVE 1.
Exercise 2.
# Set data in columns labelled A and B.
DOTPLOT ‘A’ ‘B’;
OVERLAY.
MANN-WHITNEY ‘A’ ‘B’
Exercise 3.
# Set differences in column labelled ‘d’.
DOTPLOT ‘d’
WTEST 0 ‘d’
