maths skills Flashcards
(3 cards)
1
Q
when doing a stats test, what significance level do you use
A
0.05%
2
Q
when do you accept the alternative hypothesis in the stats test
A
when your calculated value is HIGHER than the significance level value
3
Q
how to calculate the IQR from a table
A
-find the cumilative freuency of each row
-find the total frequence
-do n+1/4 and then find the closest number higher than this result in the cumilative frquency table
-then read across for the score and this is Q1
-do the same by n+1/2 x 3 and reading across to find the score NOT FREQUENCY for Q3
-now do Q3-Q1
