When choosing the right coffee beans for you, buying single-origin or blended coffee is another factor to consider. Buy single origin if you enjoy the body and flavour profile of specific coffee regions, and go for blend if you're happy with beans that have come from various geographic areas. Based on a randomly selected sample of 52 batches of coffee beans, 25 of them are blended.

(1 mark) What is a point estimate for the proportion of blended in coffee beans? Answer (3dp)

(2 mark) Calculate a 95% confidence to estimate the unknown population proportion of blended coffee beans.

Lower bound Answer(3dp)

Upper bound Answer(3dp)