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[06] Module 6 Quiz
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Ashworth College | MA260 Statistical Analysis I Module 6 Quiz
Written Dec 9, 2025 11:02 AM - Dec 9, 2025 12:07 PM o Attempt 1 of 2
Your quiz has been submitted successfully.
Attempt Score 100/ 100 - 100 %
Overall Grade (Highest Attempt) 100/ 100 - 100 %
Question 1 5/ 5 points
Use technology to solve the following problem: A normal population has a mean u = 31 and standard
deviation ¢=7. What is the probability that a randomly chosen value will be greater than 18?
O 0.0316
® 0.9684
O 0.6386
O 0.9088
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Question 2 5/ 5 points
Using technology, use the normal approximation to find the indicated probability. The sample size is n, the
population proportion of successes is p, and Xis the number of successes in the sample.
n=79,p=026: AX<17)
@® 0.1500
O 0.1670
O 0.1343
O 0.8500
Question 3 5/ 5 points
Use technology to solve the following problem: According to a recent study, the weight of male babies less
than two months old in the United States is normally distributed with mean 11.4 pounds and standard
deviation 2.7 pounds. What proportion of babies weigh between 9.7 and 11.5 pounds?
® 0.2503
O 0.6667
O 0.7497
O 07792
Question 4 5/ 5 points
The mean number of pets per household is 3.33 with standard deviation 1.6. A sample of 53 households is
drawn. Find the 78th percentile of the sample mean.
O 4.20
® 3.50 Main Content
O 435
O 2.89
[06] Module 6 Quiz
Your work has been saved and submitted
Ashworth College | MA260 Statistical Analysis I Module 6 Quiz
Written Dec 9, 2025 11:02 AM - Dec 9, 2025 12:07 PM o Attempt 1 of 2
Your quiz has been submitted successfully.
Attempt Score 100/ 100 - 100 %
Overall Grade (Highest Attempt) 100/ 100 - 100 %
Question 1 5/ 5 points
Use technology to solve the following problem: A normal population has a mean u = 31 and standard
deviation ¢=7. What is the probability that a randomly chosen value will be greater than 18?
O 0.0316
® 0.9684
O 0.6386
O 0.9088
, ¥ Exit Fullscreen
Question 2 5/ 5 points
Using technology, use the normal approximation to find the indicated probability. The sample size is n, the
population proportion of successes is p, and Xis the number of successes in the sample.
n=79,p=026: AX<17)
@® 0.1500
O 0.1670
O 0.1343
O 0.8500
Question 3 5/ 5 points
Use technology to solve the following problem: According to a recent study, the weight of male babies less
than two months old in the United States is normally distributed with mean 11.4 pounds and standard
deviation 2.7 pounds. What proportion of babies weigh between 9.7 and 11.5 pounds?
® 0.2503
O 0.6667
O 0.7497
O 07792
Question 4 5/ 5 points
The mean number of pets per household is 3.33 with standard deviation 1.6. A sample of 53 households is
drawn. Find the 78th percentile of the sample mean.
O 4.20
® 3.50 Main Content
O 435
O 2.89
