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Math 210 Final Exam Answers and Statistical Analysis Results - Prof. Todd M. Swanson, Exams of Statistics

The answers to math 210 final exam questions along with statistical analysis results. It includes calculations for means, regression lines, p-values, and chi-square tests.

Typology: Exams

Pre 2010

Uploaded on 08/07/2009

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Math 210
Final Exam A Key
Fall 2006
1. b
2. d
3. c
4. c
5. .
a) 92.9
b) 56.16
c) .
d) ŷ = 6.93 + 0.047x
e) 0.6
f) H
0
: β = 0; H
a
: β > 0
t = 2.12; P-value = 0.03
We can conclude there
is a positive relationship
between gestation
period and life
expectancy.
g) 0.74 to 19.05 years
h) 6.77 to 13.01 years
6. .
a) 0.0996
b) 0.0993
c) 0.8011
7. .
a) 0.2839
b) 97.05°
c) 0.0239
8. .
a) 325/2201
b) 202/325
c) 178/2201
d) 178/710
9. .
a) 0.3164
b) 0.9492
10. .
a) H
0
: There is no relationship between gender and party affiliation.
H
a
: There is a relationship between gender and party affiliation.
χ
2
= 3.56; P-value = 0.059
We cannot conclude that there is a relationship between gender and party
affiliation.
pf2

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Math 210 Final Exam A Key Fall 2006

  1. b
  2. d
  3. c
  4. c 5.. a) 92. b) 56. c). d) ŷ = 6.93 + 0.047x e) 0. f) H 0 : β = 0; Ha: β > 0 t = 2.12; P-value = 0. We can conclude there is a positive relationship between gestation period and life expectancy. g) 0.74 to 19.05 years h) 6.77 to 13.01 years 6.. a) 0. b) 0. c) 0. 7.. a) 0. b) 97.05° c) 0. 8.. a) 325/ b) 202/ c) 178/ d) 178/ 9.. a) 0. b) 0. 10.. a) H 0 : There is no relationship between gender and party affiliation. Ha: There is a relationship between gender and party affiliation. χ^2 = 3.56; P-value = 0. We cannot conclude that there is a relationship between gender and party affiliation.

b) Democrat Republican Male 42 39 Female 42 39

  1. H 0 : p = 0.5; Ha: p >0. z = 2.71; P-value = 0. We can conclude that a majority of football fans want to see OSU play Florida in the national championship game.
  2. 1188.0 to 1288.
  3. 32.498 to 40.
  4. H 0 : μ 1 = μ 2 = μ 3 ; Ha: Not all the population means are the same F = 41.09; P-value = 0. We can conclude that there is a relationship between the color of the board and the mean number of insects trapped.