Statistics MA3110
Shaun Howard
1)
Final Exam
November 18, 2013
H : Company A = Company B
H : Company A Company B
2) Based on the information given and that there is no sure standard deviation this test is a
two-tailed t-test.
3) 2.0096 is the Critical t-v
SUMMARY OUTPUT PG. 552 #20
Regression Statistics
Multiple R 0.901152
R Square 0.812074
Adjusted R Square
0.780753
Standard Error
563.2107
Observations
8
4000
3000
Commut ers
Column A
Column B
2000
1000
ANOVA
df
Regression
Residual
Total
Paking Spaces Line
Statistics MA3110
Shaun Howard
Unit 9 Problem Set 1
November 18, 2013
Pg. 568
14) x = 1.60. The predicted cost for subway fare in the year 2000 is $1.60.
Pg. 569
20) x = 1326.93. The predicted value of 1326.93 is close to the actual value of 1274.
Pg. 579
Statistics MA3110
Shaun Howard
Unit 6 Problem Set 1
October 28, 2013
Pg. 423
10) H0 : P = 20%
Ha : P 20%
Pg. 424
18) Crit. Value = -1.28
24) Crit. Value = .84
34) Crit. Value = -1.81. Given the results and the critical value of the results we must reject
Anova: Single Factor Pg.665 #14
SUMMARY
Groups
Four Cylinder
Six Cylinder
Eight Cylinder
ANOVA
Source of Variation
Between Groups
Within Groups
Total
Count
13
12
7
SS
25.08585
11.25415
36.34
Sum
Average
88.7 6.823077
96.3
8.025
63.8 9.114286
df
Variance
0
Statistics MA3110
Shaun Howard
Unit 4 Problem Set 1
October 14, 2013
Pg. 285
6) X = 80, Mean = 100, St. Deviation = 15
Z = 0.010934005
8) X = 35, Mean = 100, St. Deviation = 15
Z = 2.22472E-06
10) X = 87.4
12) X = 65.2
Pg. 300
D
DD
DD
DA
DA
DA
D
D
A
A
A
D
Statistics MA3110
Shaun Howard
Unit 7 Problem Set 1
November 4, 2013
Pg. 485
8) 8.733. The results show that the trials arent the same.
10) .131 .032
P.499
12) -1.71088. The results show that the king size tar content in a cigarette is less than those in
Statistics MA3110
Shaun Howard
Unit 3 Problem Set 1
October 7, 2013
Pg. 230
10.
x
0
1
2
3
4
5
P(x)
0.528
0.36
0.098
0.013
0.001
0+
x*P(x)
0
0.36
0.196
0.039
0.004
0+
16. a) The exact probability of getting exactly 3 peas with green pods is 0.023.
b) The p
Statistics MA3110
Shaun Howard
Unit 2 Problem Set 1
September 30, 2013
Pg. 107 #8
Mean: 760.916
Median: 766.0
Stdev: 58.283
Variance: 3396.992
According to the data above the sample FICO scores are consistent with the reported score.
Pg. 123 #8
Range: 172
Statistics PM3110
Shaun Howard
Mid-Term Exam
October 28, 2013
1) The quantitative variable is the MPAA rating all of the other values are the qualitative
variables.
2) The level of measurement of gross sales is nominal.
0-2
3-4
5
5-6
1
7-8
13
9-10
16
0
3)