In: Statistics and Probability
An experimenter flips a coin 100 times and gets 62 heads. We wish to test the claim that the coin is fair (i.e. a coin is fair if a heads shows up 50% of the time). Test if the coin is fair or unfair at a 0.05 level of significance. Calculate the z test statistic for this study. Enter as a number, round to 2 decimal places.
We have for given example,
Population proportion value is =0.5
x=62
n=100
Level of significance = 0.05
Estimate for sample proportion =0.62
Z test statistic formula for proportion
=2.40