HOME WORK WEEK3
eResources
Lane et al.
Chapter
5
3
Illowsky et al.
4
Exercise
5
7
9
27
86
98
112
72
80
88
Page*
216
216
217
221
210
212
213
271
273
274
1.
A fair coin is flipped 9 times. What is the p
ACCOUNTING QUALIFYING EXAMS
Chapter 9 Section 9.3 Testing a Proportion p
5) In the past, 44% of those taking a public accounting-qualifying exam have passed the exam on
their first try. Lately, the av
HOME WORK WEEK3
eResources
Chapter
Lane et al.
5
3
Illowsky et al.
4
Exercise
5
7
9
27
86
98
112
72
80
88
Page*
216
216
217
221
210
212
213
271
273
274
1.
A fair coin is flipped 9 times. What is the p
Quiz 1:
1. Two fair dice are rolled and the number of dots facing up is added. Fill in the column for the
probabilities.
X= sum of the dots facing up
2
3
4
5
6
7
8
9
10
11
12
Atul N Roy
P(X)
Page 1
Co
Question 1. From Introduction to Statistics by Lane et al.
For the eye color data given below, construct
a)
b)
c)
d)
A pie graph
Horizontal bar graph
Vertical bar graph
A frequency table with relative
Quiz 2 (15 questions)
Consider the following statement for questions 1-6
It is given that
$132.50
for the expenses of books and
supplies for the students of a certain large university for a
semester.
5. A fair coin is flipped 9 times. What is the probability of getting exactly 6 heads?
16.4%
7.You flip a coin three times.
(a) What is the probability of getting heads on only one of your flips?
The
78. Twenty-five randomly selected students were asked the number of movies they watched the
previous week. The result are as follows.
# of movies
0
1
2
3
4
Frequency
5
9
6
4
1
Relative Frequency
.2
.3
University of Maryland University College
Stat 2000 (Whealon)
Quiz 1
Directions: Read and sign the academic honesty certification statement below before taking the quiz. Please
show your work for maxi
3. If you are told only that you scored in the 80th percentile, do you know from that description
exactly how it was calculated? Explain.
- Yes, you will need to use the formula of R=P/100 x (N +1). T
University of Maryland University College
Stat 2000 (Whealon)
Quiz 1
Directions: Read and sign the academic honesty certification statement below before taking the quiz. Please
show your work for maxi
Gabriella McFadden
Homework week 5
4. Why is a 99% confidence interval wider than a 95% confidence interval?
This is because 99% confidence interval is more accurate than the 95%.
12. A person claims
Gabby McFadden
STAT 200
November 12, 2017
Quiz 1
I know I dont need to remind anyone that UMUCs academic integrity policies. We are all
adults. We know that we shortchange only ourselves if we arent h
18.You choose an alpha level of .01 and then analyze your data.
a. What is the probability that you will make a Type I error given that the null
hypothesis is true?
Given that the null hypothesis is t
5.A fair coin is flipped 9 times. What is the probability of getting exactly 6 heads?
9C6 =84/512 = 21/128 0.164
7.You flip a coin three times.
(a) What is the probability of getting heads on only one
7-For the data from the 1977 Stat. and Biom. 200 class for eye color, construct:
a . Pie graph- see excel
b. Horizontal bar graph - see excel
c. Vertical bar graph - see excel
d. A frequency table wit
# OF
EYE COLOR STUDENTS
RELATIVE FREQUENCY
Brown
11
0.4231
Blue
10
0.3846
Green
4
0.1538
Grey
1
0.0385
TOTAL
# OF STUDENTS
Brown
26
Blue
15%
Green
Grey
4%
42%
38%
Relative
Cumulative
# of Movies Frequ
STAT 200 Final Examination
Summer 2017 OL3
STAT 200 Introduction to Statistics
Name: Tamia Roberts
Final Examination: Summer 2017 OL3/US2
Instructor:
Page 1 of 10
Answer Sheet
Instructions:
This is an
2.The formula for a regression equation is Y = 2X + 9.
a. What would be the predicted score for a person scoring 6 on X?
The predicted score for a person scoring 6 on X = 2*6 + 9 = 21
b. If someones p
8.Assume the speed of vehicles along a stretch of I-10 has an approximately normal
distribution with a mean of 71 mph and a standard deviation of 8 mph.
a. The current speed limit is 65 mph. What is t
4. Why is a 99% confidence interval wider than a 95% confidence interval?
With a 95% confidence interval, there is a 5% chance if being wrong. With a 99%
confidence interval, there is only a 1% chance
STAT 200 QUIZ 1 Professor: C. Marek (Ryan)
Summer 2017
NAME: bej
Instructions:
The quiz is worth 50 points. There are 10 problems, with points allocated as indicated.
Your score on the quiz will be c
Lane
7- For the data from the 1977 Stat. and Biom. 200 class for eye color, construct:
a- pie chart
b- horizontal bar graph
c- vertical bar graph
d- a frequency table with the relative frequency of ea
Keith R. Willard
STAT Quiz 1
1. I would use a Stratified sampling in order to predict the outcome of a presidential
election. I would first get a list of registered Democrat, Republican and Independen
Keith R. Willard
Week 5 Homework
Lane, et al.
4. A 99% is wider because it is more likely to capture it. The critical value increases causing the
interval to be wider.
12. 16/25 1.96 * 0.096 ( 0.452,0
Keith R. Willard
HW 3 STATS
Lane et al.
5. P(X=6) = 0.164
7. a. P(X=1) = 0.375
b. P(X1)= 0.875
9. a. 4/20*5/19 + 5/20*4/19 = 0.105
b. 10/20*1/19 + 1/20*10/19 = 0.053
27.a. 3/44 or .068
b. 10/44 and 6/
Stats Discussion Week 2
Thomas, I think you did an excellent job with this discussion. Like many of the students you
were very thorough with your discussion. I will give my take on the outcome, rather
STATS Discussion Week 1
I found the section title Common Pitfalls quite interesting. I never really thought about how easily an
average can be misrepresented. In the article the author (Ball, Harriet)