Pts what is the probability that the mean gpa for 64

Question 6
1 / 1 pts
What is the probability that the mean GPA for 64 randomly selected BYU-Idaho
students will be less than 3.5? Round your answer to three decimal places.
Use the following information to answer the next 4 questions.
Tanker trucks are designed to carry huge quantities of gasoline from refineries to
filling stations. A factory that manufactures the tank of the trucks claims to
manufacture tanks with a capacity of 8550 gallons of gasoline. The actual capacity

Question 7
1 / 1 pts
Find the z-score corresponding to a tank with a capacity of 8550 gallons. Round
your answer to one decimal place. (Example: 0.3)
Question 8
1 / 1 pts
What is the probability that a randomly selected tank will have a capacity of less
than 8550 gallons? Round your answer to three decimal places. (Example: 0.398)
Question 9
1 / 1 pts
A simple random sample of n = 20 tanks will be selected. Find the z-score
corresponding to a sample mean capacity for 20 tanks of 8550. Round your
answer to three decimal places. (Example: 0.398)
Question 10
1 / 1 pts
A simple random sample of n = 50 tanks will be selected. What is the probability
that the mean capacity for these 50 tanks will be greater than 8540 gallons? Round
your answer to three decimal places. (Example: 0.398)
Quiz Score:
10
out of 10