# Question: A sample of 80 results in 30 successes a Calculate

A sample of 80 results in 30 successes.

a. Calculate the point estimate for the population proportion of successes.

b. Construct 90% and 99% confidence intervals for the population proportion.

c. Can we conclude at 90% confidence that the population proportion differs from 0.5?

d. Can we conclude at 99% confidence that the population proportion differs from 0.5?

a. Calculate the point estimate for the population proportion of successes.

b. Construct 90% and 99% confidence intervals for the population proportion.

c. Can we conclude at 90% confidence that the population proportion differs from 0.5?

d. Can we conclude at 99% confidence that the population proportion differs from 0.5?

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