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Sign test steps
Work out sign (+or-) condition B - Condition A
Calculated value = least common sign / lowest number of + or -
Statistical test table
Carrots Should Come Mashed With Swede Under Roast Potatoes
Type I error
False positive (- +), rejecting the null hypothesis when it should be accepted (insignificant result)
Type II error
False negative (- -), accepting the null hypothesis when it should be rejected. (significant result)
Note 
Flashcard (48)