M6: Exam- Requires Respondus LockDown Browser
Due No due date
Points 50
Questions 5
Time Limit 90 Minutes
Requires Respondus LockDown Browser
Attempt History
Attempt Time Score
LATEST Attempt 1 87 minutes 50 out of 50
Score for this quiz: 50 out of 50
Submitted Jul 20 at 7:43pm
This attempt took 87 minutes.
Question 1
pts
You may find the following files helpful throughout the exam:
Statistics_Equation_Sheet (Links to an external site.)
Standard Normal Table (Links to an external site.)
T Table (Links to an external site.)
A new drug is introduced that is supposed to reduce fevers. Tests are done with the drug. The drug is
given to 40 people who have fevers. It is found that the mean time that it takes for the fever to get back
to normal for this test group is 320 minutes with a standard deviation of 60 minutes. Find the 90%
confidence interval for the mean time that the drug will take to reduce all fevers for all people.
Answer the following questions:
1. Multiple choice: Which equation would you use to solve this problem?
, A.
B.
C.
D.
E.
2. List the values you would insert into that equation.
3. State the final answer to the problem
Your Answer:
1. I would use the first one (A).
2. n+40, =320, and s=60, z=1.645(90%confidencelevel)
3. The final asnwer to the problem is:
The drug will ultimately sold to a very large number of people. So, we may assume a very large
population. Since the sample size is greater than 30, we should use Case 1: Very large population and
very large sample size.
We are given the sample mean and sample standard deviation. So, we have
n=40 x ̅=320 s=60
We will use these values in the equation:
Due No due date
Points 50
Questions 5
Time Limit 90 Minutes
Requires Respondus LockDown Browser
Attempt History
Attempt Time Score
LATEST Attempt 1 87 minutes 50 out of 50
Score for this quiz: 50 out of 50
Submitted Jul 20 at 7:43pm
This attempt took 87 minutes.
Question 1
pts
You may find the following files helpful throughout the exam:
Statistics_Equation_Sheet (Links to an external site.)
Standard Normal Table (Links to an external site.)
T Table (Links to an external site.)
A new drug is introduced that is supposed to reduce fevers. Tests are done with the drug. The drug is
given to 40 people who have fevers. It is found that the mean time that it takes for the fever to get back
to normal for this test group is 320 minutes with a standard deviation of 60 minutes. Find the 90%
confidence interval for the mean time that the drug will take to reduce all fevers for all people.
Answer the following questions:
1. Multiple choice: Which equation would you use to solve this problem?
, A.
B.
C.
D.
E.
2. List the values you would insert into that equation.
3. State the final answer to the problem
Your Answer:
1. I would use the first one (A).
2. n+40, =320, and s=60, z=1.645(90%confidencelevel)
3. The final asnwer to the problem is:
The drug will ultimately sold to a very large number of people. So, we may assume a very large
population. Since the sample size is greater than 30, we should use Case 1: Very large population and
very large sample size.
We are given the sample mean and sample standard deviation. So, we have
n=40 x ̅=320 s=60
We will use these values in the equation:
