Applied Science

MTH540 Statistics
Final Exam
1. Identify the population and the sample.
Thirty-eight nurses working in the San Francisco area were surveyed concerning their opinions of managed health care.
Answer: Population is the thirty-eight nurses working in San Francisco
The sample is the area that was surveyed concerning opinions and managed health care.
2. Identify the population and the sample.
A survey of 1420 U.S. undergraduate English majors asked which Shakespearean play was most relevant in the year 2000.
Answer: The population is a survey of 1420 U. S. undergraduate English majors
The sample is the Shakespearean play that was almost relevant in the year 2000.
3. Make a frequency distribution of the data set using five classes.
The data set represents the income (in thousands of dollars) of 20 employees at a small business.
30 28 26 39 34 33 20 39 28 33
26 39 32 28 31 39 33 31 33 32
Answer:
Frequency Distribution Table

Income (in thousands of dollars) Frequency
20
1
26
2
28
3
30
1
31
2
32
2
33
4
34
1
39
4

4. Make a relative frequency histogram using the frequency distribution in problem 3.
Answer:

5. The following are the height (in feet) and the number of stories of nine notable buildings in Miami. Use the data to construct a scatter plot. What type of pattern is shown in the scatter plot?

Height (in feet) 764 625 520 510 484 480 450 430 410 Number of stories 55 47 51 28 35 40 33 31 40

6. Make a Pareto chart of the data set.

Breed
Labrador
Retriever
Golden
Retriever
German
Shepherd
Dachshund
Beagle
Poodle
Yorkshire
Terrier
Number
Registered
(in thousands)

173

66

58

55

52

46

44

Answer:

7. Use the given claim to state a null and an alternative hypothesis. Identify which hypothesis represents the claim.