Morningstar publishes ratings data on 1208 company stocks Morningstar website Morningstar publishes.

Morningstar publishes ratings data on 1208 company stocks Morningstar website
Morningstar publishes ratings data on 1208 company stocks (Morningstar website, October 24, 2012). A sample of 40 of these stocks is contained in the data set Morningstar. Use the data set to answer the following questions.
a. Develop a point estimate of the proportion of the stocks that receive Morningstar’s highest rating of 5 Stars.
b. Develop a point estimate of the proportion of the Morningstar stocks that are rated Above Average with respect to business risk.
c. Develop a point estimate of the proportion of the Morningstar stocks that are rated 2 Stars or less.

Morningstar publishes ratings data on 1208 company stocks Morningstar website