Television viewing reached a new high when the global information and measurement company reported a mean daily viewing time of 8.35 hours per household. use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily television viewing per household.

(a.) what is the probability that a household views television between 6 and 8 hours a day (to 4 decimals)?
(b.) how many hours of television viewing must a household have in order to be in the top 5% of all television viewing households (to 2 decimals)?
(c.) what is the probability that a household views television more than 5 hours a day (to 4 decimals)?