3.0 Maths Skills Flashcards
1
Q
how do you calculate degrees of freedom for Spearman’s?
A
number of pairs of measurements
2
Q
how do you calculate degrees of freedom for Chi-Squared?
A
number of categorise - one
3
Q
how do you calculate degrees of freedom for T-Test?
A
(sample size one + sample size two) - 2
4
Q
what does Spearman’s tell us?
(four)
A
the correlation coefficient can take any value from -1 - 1
a negative number shows a negative correlation
a positive number shows a positive correlation
the further away from zero the correlation coefficient is the stronger the correlation
5
Q
TRUE OR FALSE
each stats test needs the calculated to be greater than the critical
A
TRUE
