Josue flipped his lucky coin 19 times and got 9 heads. Josue used these numbers to estimate the probability of getting a head with his lucky coin.

What is the estimated probability of Josue flipping a head with his lucky coin?

Number

(Write your answer as a decimal rounded to 3 decimal places)

Find the margin of error for Josue's estimated probability above.

Number

(Write your answer as a decimal rounded to 3 decimal places)

Create a confidence interval for the chance of flipping a head with Josue's lucky coin.

Number to Number

(Write your answers as a decimal rounded to 3 decimal places)

Can Josue conclude that the probability of flipping a head with his lucky coin is actually different from 0.5?

Yes, the probability of flipping a head with Josue's lucky coin was shown to be 0.474, which is clearly different from 0.5.

Yes, the 95% confidence interval does not contain 50% so this shows evidence that the true probability of flipping a head for Josue's lucky coin is not 0.5.

No, the 95% confidence interval contains 50% as a possibility so it would be illogical to think that Josue's lucky coin has a probability different from 0.5 based on his sample of data.