Exhibit 9-7A random sample of 16 statistics examinations fro…

Exhibit 9-7A random sample of 16 statistics examinations from a large population was taken. The average score in the sample was 78.6 with a variance of 64. We are interested in determining whether the average grade of the population is significantly more than 75. Assume the distribution of the population of grades is normal.Refer to Exhibit 9-7. The p-value is between

Exhibit 5-7The probability that Pete will catch fish when he…

Exhibit 5-7The probability that Pete will catch fish when he goes fishing is .8. Pete is going to fish 3 days next week. Define the random variable X to be the number of days Pete catches fish.Refer to Exhibit 5-7. The probability that Pete will catch fish on one day or less is

Exhibit 6-9The average price of personal computers manufactu…

Exhibit 6-9The average price of personal computers manufactured by MNM Company is $1,200 with a standard deviation of $220. Furthermore, it is known that the computer prices manufactured by MNM are normally distributed.Refer to Exhibit 6-9. What is the probability that a randomly selected computer will have a price of at least $1,530?

Exhibit 5-12The police records of a metropolitan area kept o…

Exhibit 5-12The police records of a metropolitan area kept over the past 300 days show the following number of fatal accidents. Number of Fatal   Accidents Number of Days 0 45 1 75 2 120 3 45 4 15 Refer to Exhibit 5-12.  What is the probability that in a given day there will be at least 1 accident?