Final Exam
FINAL EXAM PBHE525
Complete the final exam offline during the final exam week. Once you have complete the exam, input your exam into the final exam shell in the exam folder on the course webpage. Good luck
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US Census statistics show that college graduates make more than $254,000 more in their lifetime than non-college graduates. If you were to question the validity of this observation, what would be your basis for doing so?
A. Definition of a college graduate
B. Work lifestyles of the population
C. Defining “lifetime”
D. How the Census was taken
The average age in a sample of 190 students at City College is 22. As a result of this sample, it can be concluded that the average age of all the students at City
College
A. must be more than 22, since the population is always larger than the sample
B. must be less than 22, since the sample is only a part of the population
C. could not be 22
D. could be larger, smaller, or equal to 22
Since a sample is a subset of the population, the sample mean
A. is always smaller than the mean of the population
B. is always larger than the mean of the population
C. must be equal to the mean of the population
D. can be larger, smaller, or equal to the mean of the population
Use the following situation for Questions 4-7. Michael, Inc., a manufacturer of electric defibrillators, is a firm that makes 50 types of electric defibrillators . The table below shows the price distribution of the defibrillators .
Price (In $)
Number of Defibrillators
100 – 130
8
140 - 170
12
180 - 210
20
220 - 250
10
Select from the following choices for Questions 4-7. Use letter only in the blank.
A. 32
B. 50% C. 20 D. 30 E. 16% F. 10 G. 60% H. 50
How many defibrillators have a price of at least $180?_______
What percentage of the defibrillators has a price of at least $180? ______
What percentage of the defibrillators has a price of less than $140? _____
How many defibrillators cost
Complete the final exam offline during the final exam week. Once you have complete the exam, input your exam into the final exam shell in the exam folder on the course webpage. Good luck
1.
2.
3.
4.
5.
6.
7.
8.
US Census statistics show that college graduates make more than $254,000 more in their lifetime than non-college graduates. If you were to question the validity of this observation, what would be your basis for doing so?
A. Definition of a college graduate
B. Work lifestyles of the population
C. Defining “lifetime”
D. How the Census was taken
The average age in a sample of 190 students at City College is 22. As a result of this sample, it can be concluded that the average age of all the students at City
College
A. must be more than 22, since the population is always larger than the sample
B. must be less than 22, since the sample is only a part of the population
C. could not be 22
D. could be larger, smaller, or equal to 22
Since a sample is a subset of the population, the sample mean
A. is always smaller than the mean of the population
B. is always larger than the mean of the population
C. must be equal to the mean of the population
D. can be larger, smaller, or equal to the mean of the population
Use the following situation for Questions 4-7. Michael, Inc., a manufacturer of electric defibrillators, is a firm that makes 50 types of electric defibrillators . The table below shows the price distribution of the defibrillators .
Price (In $)
Number of Defibrillators
100 – 130
8
140 - 170
12
180 - 210
20
220 - 250
10
Select from the following choices for Questions 4-7. Use letter only in the blank.
A. 32
B. 50% C. 20 D. 30 E. 16% F. 10 G. 60% H. 50
How many defibrillators have a price of at least $180?_______
What percentage of the defibrillators has a price of at least $180? ______
What percentage of the defibrillators has a price of less than $140? _____
How many defibrillators cost