Americans are increasingly skimping on their sleep national


Americans are increasingly skimping on their sleep (National Geographic News, February 24, 2005). A health expert believes that American adults sleep on average of 6.2 hours on weekdays with a standard deviation of 1.2 hours. To answer the following questions, assume that sleep time on weekdays is normally distributed.

  • What percent of American adults sleep more than 8 hours on weekdays?
  • What percent of American adults sleep less than 6 hours on weekdays?
  • What percent of American adults sleep between 6 to 8 hours on weekdays?

Solution Preview :

Prepared by a verified Expert
Business Management: Americans are increasingly skimping on their sleep national
Reference No:- TGS01581817

Now Priced at $15 (50% Discount)

Recommended (95%)

Rated (4.7/5)