Mann Whitney Flashcards

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1
Q

tests for

A

significant differences between two sets of data

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2
Q

example of null hypothesis

A

there is no difference between the size of the bed load at site 1 and site 8

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3
Q

example of an alternative hypothesis

A

there is a difference between bed load size at site 1 and site 8

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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
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5
Q

Sample size/range

A

must be at 2 different locations

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6
Q

advantages

A
  • can handle sample of very different sizes

- handle large data sets

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7
Q

disadvantages

A

-takes time to calculate

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8
Q

findings at sabden brook

A

95% accepted that difference in bedload at site 1 and site 8

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