11c
1Pulse rate 72 beats per minuite
E)ho u=72 ha>72
2 type 2 error
B Conclude the students have the same fitness as the general populuation
3signifigance test pvalue 0.04
B)reject h0 at the 5% significance level
4signifigance test h0 u=2 z=1.40
A)0.16
5)
Quiz 4 MATH302
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Question 1 of 20
1.0/ 1.0 Points
Which of the following statements are true of the null and alternative hypotheses?
A.It is possible for both hypotheses to be true
B.It is possible f
Quiz 3_MATH302
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Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-),
spaces (e.g., as thousands separator, 5 000), "E" or "e" (u
Quiz 1_MATH302
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Question 1 of 20
1.0/ 1.0 Points
A sample of 20 observations has a standard deviation of 4. The sum of the squared deviations
from the sample mean is:
A.288
B.304
C.400
D.320
Answer
Quiz 5 MATH302
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Question 1 of 17
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A researcher hypothesizes that the variation in the amount of money spent on business dinners is
greater than the variation of the amount of money spen
Quiz 2_MATH302
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Question 1 of 20
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If one tosses a coin enough times, the proportion of "heads" will approach 0.5. This is an
example of:
A.subjective probabilities
B.the Law of Large Nu
Christine Miller
5/31/2016
Week one homework assignment
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
There is no 100% accepted way in which to calculate this. It s
Christine Miller
Week 5 HW
June 30, 2016
Lane:
4. Why is a 99% confidence interval wider than a 95% confidence interval?
The definition of a confidence interval is that it contains the true population mean. If I have a
95% confidence interval, that means
Christine Miller
Week 3 HW
14 June 2016
Lane et al:
5. A fair coin is flipped 9 times. What is the probability of getting exactly 6 heads?
1/ (2^9) x (9/6)
(2^9) = 512
(9 x 8 x7) / (3 x 2 x 1) =84
84/512 = 0.1640625 x 100
16.4%
7. You flip a coin three ti
Christine Miller
Week 4 HW
June 25, 2016
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
Christine Miller
Week 7 HW
July 13, 2016
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?
Y' = 2(6)+9
Y=12+9
Y=21
b. If someones predicted score was 14, what was this persons score o
Christine Miller
Week 6 HW
7 July 2016
Lane:
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? .01 or 1%
b. What is the probability that yo
STAT 200
Section 6360
Summer 2016`
Quiz #2
Please answer all 6 big questions. The maximum score for each question is
posted at the beginning of the question, and the maximum score for the
quiz is 80 points. Make sure your answers are as complete as possib
STAT 200
Summer 2016`
Quiz #3
Please answer all 4 big questions. The maximum score for each
question is posted at the beginning of the question, and the maximum score
for the quiz is 80 points. Make sure your answers are as complete as
possible and show y
Christine Miller
6/11/2016
Week 2 Homework
Lane et al:
7. For the data from the 1977 Stat. and Biom. 200 class for eye color, construct:
Number of students
Brown
Blue
Green
Gray
a. pie graph
b. horizontal bar graph
Number of Students
Gray
Green
Blue
Brown
SPSS ASSIGNMENT #4
Crosstabs
For this assignment you will be using the data contained in the
following file (you can find it under Resources)dataset.sav
The Crosstabs command produces frequency distributions for
multiple variables. This command is useful
Part 1 of 9 -
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Question 1 of 25
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For a boxplot, the vertical line inside the box indicates the location of the
A.mean
B.median
C.mode
D.inter quartile range
Answer Key: B
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Question 2 of 25
1.0/ 1.