An experimenter flips a coin 100 times and gets 62 heads. We wish to test the...

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.

Expert Solution

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

orchestra answered 2 years ago

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