Stat 4510/7510 Exam 2. October 31st 2013
Name:
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Q1. A tax consultant studied the current relation between selling price and assessed valuation of
one-family residential dwellings in a large tax district by obtaining data
eastern 1. (33 pts) An engineer, desiring to estimate the coefficient of correlation 01 between rate of water
w at point A in a stream and concurrent rate of flow at point B obtained r1 = .83 in a sample of 147 cases.
a. (15 pts) Compute the 95% confidenc
9
Problem 1. (6 pts) Thickness measurements of ancient prehistoric Native American pot shards discoverid infa
Hopi village are approximately normally distributed, with a mean of 5.1 mm and a standard deviation of 0.9
mm. For a randomly found shard, what i
HW3 key
a As QUET increases SBP increases. As Age increases QUET increases. As Age
increases SBP increases.
b (1) o= 70.576 [3,=21.492
(2) li= 70.576 + 21.492X. The line is plotted on the graph below.
(3)Ho:,61 =0 Hdzlqo
Test statistic: T = 6.06 P-value:
HW2
15. I Since the P-value is < 0.01. we conclude that y g is signicantly larger than m.
b Same conclusion as (a).
16. T_ (X,-X;) _ (140.43-143) 0289
_ SPJI/n, + 1/; _ (15.98)\/1/7 +l/6 ='
Thus we cannot reject Ho: [1 1 = y: for a = 0.05.
17. (0995,10 =
STAT 4510/7510 Applied Statistical Models:
Assignment #1
Due on Thursday, August 29, 2013
Sungwook Peter Kim
1
STAT 4510/7510 Applied Statistical Models (Sungwook Peter Kim ): Assignment #1
Contents
Problem 1
3
Problem 2
3
Problem 3
3
Problem 4
3
Problem
STAT 4510/7510 Applied Statistical Models:
Assignment #1 (Solutions)
Due on Thursday, August 29, 2013
Kim
1
STAT 4510/7510 Applied Statistical Models ( Kim ): Assignment #1 (Solutions)
Contents
Problem 1
3
Problem 2
3
Problem 3
3
Problem 4
3
Problem 5
4
P
1.
The CORR Procedure
2 Variables: X X2
Simple Statistics
Variable N
Mean Std Dev
Sum Minimum Maximum
X
8 1.27500 0.33700 10.20000
0.80000
1.90000
X2
8 1.72500 0.92076 13.80000
0.64000
3.61000
Pearson Correlation Coefficients, N = 8
Prob > |r| under H0: R
STAT 4510/7510 Applied Statistical Models:
Assignment #6 (Solutions)
Due on Thursday, November 21, 2013
Kim
1
STAT 4510/7510 Applied Statistical Models (Kim ): Assignment #6 (Solutions)
Contents
Problem 1
3
Problem 2
4
Problem 3
5
Problem 4
6
Page 2 of 6
Stat 4510/7510 Exam 1. (Solutions) September 26th 2013
Show your work. No work= No credit.
Q1. The number of hits that a particular website receives between 4 p.m. and 5
p.m. during a weekday approximately follows a Poisson distribution with an average of