According to the Internal Revenue Service 75 of all tax According to the Internal Revenue Service,.. 1 answer below »

According to the Internal Revenue Service 75 of all tax

According to the Internal Revenue Service, 75% of all tax returns lead to a refund. A random sample of 100 tax returns is taken.

a. What is the mean of the distribution of the sample proportion of returns leading to refunds?

b. What is the variance of the sample proportion?

c. What is the standard error of the sample proportion?

d. What is the probability that the sample proportion exceeds 0.8?

According to the Internal Revenue Service 75 of all tax

"Is this question part of your assignment? We can help"

ORDER NOW