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Inference about a Population Proportion

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Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 200 times and got 83 heads. How significant is this evidence against equal probabilities?

Use the following four step process:
STATE: What is the practical question that requires estimating a parameter?
PLAN: Identify the parameter, choose a level of confidence, and select the type of confidence interval that fits your situation.
SOLVE: Carry out the work in 2 phases:
1. Check the conditions for the interval you plan to use.
2. Calculate the confidence interval.
CONCLUDE: Return to the practical question to describe your results in this setting.

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Solution Summary

This solution uses a four step process to determine the significance of evidence against equal probabilities.

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