Stats Final ***Professor Anthony***

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STAT 200 Final Examination Spring 2016 OL4/US2 Page 1 of 9

STAT 200 Introduction to Statistics Name______________________________

Final Examination: Spring 2016 OL4/US2 Instructor __________________________

Answer Sheet

Instructions:

This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use a calculator.

Record your answers and work in this document.

Answer all 20 questions. Make sure your answers are as complete as possible. Show all of your work and reasoning. In particular, when there are calculations involved, you must show how you come up with your answers with critical work and/or necessary tables. Answers that come straight from calculators, programs or software packages will not be accepted. If you need to use software (for example, Excel) and /or online or hand-held calculators to aid in your calculation, please cite the source and explain how you get the results.

When requested, show all work and write all answers in the spaces allotted on the following pages. You may type your work using plain-text formatting or an equation editor, or you may hand-write your work and scan it. In either case, show work neatly and correctly, following standard mathematical conventions. Each step should follow clearly and completely from the previous step. If necessary, you may attach extra pages.

You must complete the exam individually. Neither collaboration nor consultation with others is allowed. It is a violation of the UMUC Academic Dishonesty and Plagiarism policy to use unauthorized materials or work from others. Your exam will receive a zero grade unless you complete the following honor statement.

Please sign (or type) your name below the following honor statement:

I understand that it is a violation of the UMUC Academic Dishonesty and Plagiarism policy to use unauthorized materials or work from others. I promise that I did not discuss any aspect of this exam with anyone other than my instructor. I further promise that I neither gave nor received any unauthorized assistance on this exam, and that the work presented herein is entirely my own.

Name _____________________ Date___________________

Record your answers and work.

Problem Number

Solution

1

Answer:

(a)

(b)

(c)

(d)

(e)

Justification:

2

Answer:

(a)

(b)

(c)

(d)

Justification:

3

Answer:

(a)

Commute Time (in minutes)

Frequency

Relative Frequency

1 – 14.9

5

15 – 29.9

10

30 – 44.9

0.20

45 – 59.9

20

60 or above

Total

50

 

(b)

(c)

Work for (a) and (b):

4

Answer:

(a)

(b)

(c)

Justification :

5

Answer:

(a)

(b)

Work for (b):

6

Answer:

(a)

(b)

Work for (b):

7

Answer:

(a)

(b)

Work for (a) and (b):

8

Answer:

(a)

(b)

Work for (a) and (b):

9

Answer:

Work:

10

Answer:

(a)

(b)

Work for (b) :

11

Answer:

(a)

(b)

Work for (a) and (b):

12

Answer:

(a)

(b)

Work for (a) and (b):

13

Answer:

Work:

14

Answer:

Work:

15

Answer:

(a)

(b)

(c)

(d)

Work for (b) and (c):

16

Answer:

(a)

.

(b)

(c)

(d)

Work for (b) and (c):

17

Answers:

(a)

(b)

(c)

(d).

Work for (b) and (c):

18

Answer:

(a)

(b)

(c)

(d)

Work for (b) and (c):

19

Answer:

(a)

(b)

Work for (a) and (b):

20

Answer :

(a)

Source of Variation

Sum of Squares

(SS)

Degrees of Freedom (df)

Mean Square (MS)

Factor

(Between)

42.36

Error

(Within)

Total

1100.76

N/A

(b)

(c)

(d)

Work for (a), (b) and (c)