Mann Whitney Flashcards
1
Q
tests for
A
significant differences between two sets of data
2
Q
example of null hypothesis
A
there is no difference between the size of the bed load at site 1 and site 8
3
Q
example of an alternative hypothesis
A
there is a difference between bed load size at site 1 and site 8
4
Q
method
A
- rank two sites as if they are one data set
- sum the ranks separately
- put figures into 2 equations
- take the lower of the 2 answers and test for significance on the table
5
Q
Sample size/range
A
must be at 2 different locations
6
Q
advantages
A
- can handle sample of very different sizes
- handle large data sets
7
Q
disadvantages
A
-takes time to calculate
8
Q
findings at sabden brook
A
95% accepted that difference in bedload at site 1 and site 8
