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Christina Hansen
Quiz 3
Stat 200 (Clary)
Instructions: Record your answers and work in the space below each problem. Be sure to record
the final answer next to Answer and show all your calculation steps or assumptions under
Work. You can type in your calc
Homework Assignment 5
Q\ "x cfw_\CS W Stat 200 (Clary)
Instructions: Be sure to record the nal answer next to Answer and show all your
calculation steps or assumptions under Work. You can type in your calculations, use
the equation tool, or insert images
a)
This design is withinsubjects design.
A wilinsnbjec'ls design, which is sometimes called a repeated measures design. This
type of experimental design is when one set of participants are tested more than once and
their scones are compared. It is called
Sample size: 25
Mean x (x): 51.4
Mean y (y): 56.6
Intercept (a): 16.155169491525
Slope (b): 0.78686440677966
Regression line equation: y=16.155169491525+0.78686440677966x
http:/www.alcula.com/calculators/statistics/linear-regression/linear-regression-
ima
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Page 1 of 9
Homework Assignment 2
Stat 200 (Clary)
Instructions: Be sure to record the final answer next to Answer and show all your calculation
steps or assumptions under Work. You can type in your calculations, use the equation tool, or
insert images of
Christina Hansen
Homework Assignment 6
Stat 200 (Clary)
Instructions: Be sure to record the final answer next to Answer and show all your calculation
steps or assumptions under Work. You can type in your calculations, use the equation tool, or
insert imag
STAT 200: Introduction to Statistics
1.
Final Examination, Spring 2016 OL1/US1
Page 2 of 7
True or False. Justify for full credit.
(a)
(b)
(c)
(d)
(e)
The standard deviation of a data set cannot be negative.
If P(A) = 0.4 , P(B) = 0.5, and A and B are dis
Page 1 of 7
Homework Assignment 3
Stat 200 (Clary)
Instructions: Be sure to record the final answer next to Answer and show all your calculation
steps or assumptions under Work. You can type in your calculations, use the equation tool, or
insert images of
STAT 200
Week 5 Assignment
Lane et al.
4. Why is a 99% confidence interval wider than a 95% confidence interval?
Formula for construct confident interval (CI) is:
CI = (Mean z multiplier*Standard error)
Calculating the 99% CI the z multiplier value is lar
STAT 200 Final Examination
Fall 2015 OL3
Page 1 of 12
STAT 200 Introduction to Statistics
Final Examination: Fall 2015 OL3
Instructor _Mr. Baysah_
Answer Sheet
Instructions:
This is an open-book exam. You may refer to your text and other course materials
STAT 200
Fall 2015
Quiz #3
Answer all 20 questions. Each question is worth 2 points, and the
maximum score for the quiz is 40 points. Make sure your answers are as
complete as possible and show your work/argument. In particular, when
there are calculation
STAT 200
Week 4 Assignment
Lane et al.
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 the proportion o
STAT 200
Week 3 Assignment
Lane et al.
5. A fair coin is flipped 9 times. What is the probability of getting exactly 6 heads?
0.164
7.You flip a coin three times. (a) What is the probability of getting heads on only one
of your flips? (b) What is the prob
STAT 200
Week 6 Assignment
Lane et al.
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?
The probability of type I error is actually alpha
STAT 200
Week 1 Assignment
Lane et al.
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, it means I scored 80% or less
of a given set. Using the formula R = P / 1
STAT 200
Fall 2015
Quiz #1
Answer all 20 questions. Each question is worth 2 points, and the
maximum score for the quiz is 40 points. Make sure your answers are as
complete as possible and show your work/argument. In particular, when
there are calculation
STAT 200
Fall 2015
Quiz #2
Answer all 20 questions. Each question is worth 4 points, and the
maximum score for the quiz is 80 points. Make sure your answers are as
complete as possible and show your work/argument. In particular, when
there are calculation
STAT 200
Week 7 Assignment
Lane et al.
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 =2*6+9=21
b. If someones predicted score was 14, what was this persons sco
STAT 200
Week 2 Assignment
Lane et al.
3. An experiment compared the ability of three groups of participants to remember
briefly presented chess positions. The data are shown below. The numbers
represent the number of pieces correctly remembered from thre