We wish to know if the computer flips "fair coins". a) First, determine the sample size necessary to estimate the true proportion of heads with 90% confidence to within 3% of the actual proportion.  Round z-critical to three decimal places. b) Generate a sample (size found above) using the following site:  http://www.shodor.org/interactivate/activities/Coin/. Insert the number of tosses and under  “Display Results” click on “Table”. Record the number of heads. Next, find the sample  proportion of heads rounded to three decimal places. c) Use P-Value method to test the claim that the coin is unfair. Identify the null and alternative hypotheses (using correct mathematical symbols), test statistic, P-value, and conclusion.

We wish to know if the computer flips "fair coins".

a) First, determine the sample size necessary to estimate the true proportion of heads with 90% confidence to within 3% of the actual proportion. 

Round z-critical to three decimal places.

b) Generate a sample (size found above) using the following site: 

http://www.shodor.org/interactivate/activities/Coin/. Insert the number of tosses and under 

“Display Results” click on “Table”. Record the number of heads. Next, find the sample 

proportion of heads rounded to three decimal places.

c) Use P-Value method to test the claim that the coin is unfair. Identify the null and alternative hypotheses (using correct mathematical symbols), test statistic, P-value, and conclusion.