Question

A U.S. consumer research company commissioned by a large music streaming service estimated that U.S. consumers spend on average $20 per month on streaming or buying music, with variance of the spending equal to 9. Assume that monthly music-related spending has a normal distribution. a. Compute the probability that a U.S. consumer has monthly spending to the amount of at least $16. und to four decimal places as needed.) b. Consider the top 9% of U.S. consumers, in terms of monthly music spending. What is the amount of monthly spending beyond which a consumer would be in the top 9%? ound to the nearest cent as needed.)