8. An insurance company reported that 30% of those persons involved in minor traffic accidents this year have been involved in at least one traffic accident in the last three years. Believing it was too large, an advisory group decided to investigate this claim. A sample of 200 traffic accidents this year showed that 56 persons were also involved in another accident in the last three years. Determine the value of the population proportion. С. 3.57 A. 0.28 В. О.30 D. 60.0 In problem no. 8, what is the value of p? В. О.35 9. A. 0.28 С. 3.57 D. 60.0 10. In a certain senior high school, it is estimated that approximately 15% of the students ride bicycles in going to school. In a random sample of 90 senior high students, 19 are found to ride bicycles in coming to class. What is the value of the population proportion? A. 0.15 В. 0.21 С. 0.29 D. 4.74 11. Which of the following test statistic is appropriate to use in testing hypothesis involving population proportion? A. t-test B. z-test C. p-test D. c-test 12. Before a nationwide election, a polling place was trying to see who would win. Which choice best represents the sample? A. a selection of male voters B. a selection of female voters C. a selection of voters over age 50 D. a selection of voters of different ages 13. A computer store surveys its clients who purchased laptop computers to ask what software the store should include in its computers. Identify the population. A. clients on the store B. computer manufacturers C. clients who are interested in software D. clients who purchased laptop computers
8. An insurance company reported that 30% of those persons involved in minor traffic accidents this year have been involved in at least one traffic accident in the last three years. Believing it was too large, an advisory group decided to investigate this claim. A sample of 200 traffic accidents this year showed that 56 persons were also involved in another accident in the last three years. Determine the value of the population proportion. С. 3.57 A. 0.28 В. О.30 D. 60.0 In problem no. 8, what is the value of p? В. О.35 9. A. 0.28 С. 3.57 D. 60.0 10. In a certain senior high school, it is estimated that approximately 15% of the students ride bicycles in going to school. In a random sample of 90 senior high students, 19 are found to ride bicycles in coming to class. What is the value of the population proportion? A. 0.15 В. 0.21 С. 0.29 D. 4.74 11. Which of the following test statistic is appropriate to use in testing hypothesis involving population proportion? A. t-test B. z-test C. p-test D. c-test 12. Before a nationwide election, a polling place was trying to see who would win. Which choice best represents the sample? A. a selection of male voters B. a selection of female voters C. a selection of voters over age 50 D. a selection of voters of different ages 13. A computer store surveys its clients who purchased laptop computers to ask what software the store should include in its computers. Identify the population. A. clients on the store B. computer manufacturers C. clients who are interested in software D. clients who purchased laptop computers
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:8. An insurance company reported that 30% of those persons
involved in minor traffic accidents this year have been involved
in at least one traffic accident in the last three years. Believing
it was too large, an advisory group decided to investigate this
claim. A sample of 200 traffic accidents this year showed that
56 persons were also involved in another accident in the last
three years. Determine the value of the population proportion.
С. 3.57
A. 0.28
В. О.30
D. 60.0
In problem no. 8, what is the value of p?
В. О.35
9.
А. О.28
С. 3.57
D. 60.0
10. In a certain senior high school, it is estimated that
approximately 15% of the students ride bicycles in going to
school. In a random sample of 90 senior high students, 19 are
found to ride bicycles in coming to class.
What is the value of the population proportion?
A. 0.15
В. 0.21
C. 0.29
D. 4.74
11. Which of the following test statistic is appropriate to use in
testing hypothesis involving population proportion?
A. t-test B. z-test
С. p-test
D. c-test
12. Before a nationwide election, a polling place was trying to see
who would win. Which choice best represents the sample?
A. a selection of male voters
B. a selection of female voters
C. a selection of voters over age 50
D. a selection of voters of different ages
13. A computer store surveys its clients who purchased laptop
computers to ask what software the store should include in its
computers. Identify the population.
A. clients on the store
B. computer manufacturers
C. clients who are interested in software
D. clients who purchased laptop computers
Transcribed Image Text:1. It is a part of the sample with a particular trait expressed in
decimal, percent, or fraction.
A. sample
B. population
C. sample proportion
D. population proportion
2.
It is the symbol used to represent the size of the samples.
В. р
С. р
A. n
D. х
What is the sample proportion if n = 740 and x = 259?
С. 0.56
3.
A. 0.35
В. О.50
D. 0.65
In a study about household income conducted in a small
town, it was found out that 7% of all families in the town earn
less than P4,000 per month. Out of 64 families who were
randomly selected, 10 families earn less than P4,000 per
month. Is the sample large enough to use the Central Limit
4.
Theorem?
A. No, because 10/64 < 5
C. Yes, because 64>30
B. No, because 64(0.07) < 5
D. Yes, because 64(0.93)25
5. In testing hypothesis involving population proportion, when
do we say that the sample size (n) is sufficiently large to use
the Central Limit Theorem?
A. if n230
B. if n<100
C. if np>5, nq>5
D. if n/p<5, n/q<5
6. Compute for the value of p if n = 740 and x = 259.
A. 0.35
В. О.40
С. 0.52
D. 2.86
7. Which formula for the test statistic is appropriate if the Central Limit
Theorem is used in testing hypothesis on population proportion?
А. Zcom
В. Zcom
pq
С. Z
D. z = !
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