6. Before the opening of classes, parents were asked to answer a survey. Those in favor of alternative learning mode were 1,900 out of 5,000 randomly selected parents. Using a = 0.10 level, is there enough evidence to conclude that the percentage of parents who are in favor of alternative learning mode is less than 38%? What is the appropriate alternative hypothesis? А. На: р».38 С. На: р<.38 В. На: р-.38 D. Ha: p + .38 In problem no. 6, formulate the correct null hypothesis. 7. A. The proportion of parents who are in favor of alternative learning mode is 38%. B. The proportion of parents who are in favor of alternative learning mode is not equal to 38%. C. The proportion of parents who are in favor of alternative learning mode has increased by 38%. D. The proportion of parents who are in favor of alternative learning mode is more than 38%. 8. A survey conducted last year by certain barangay officials showed that 40% of the residents owned a private car. This year a new survey is conducted on 375 residents selected randomly from the same barangay. It was found out that 190 of them own a car. Test if the claim is fewer at a = 0.01 level. Formulate the appropriate null hypothesis. Но: р3.40 А. С. Но: р<.40 В. Ha: p =.40 D. Ha: р<.40
6. Before the opening of classes, parents were asked to answer a survey. Those in favor of alternative learning mode were 1,900 out of 5,000 randomly selected parents. Using a = 0.10 level, is there enough evidence to conclude that the percentage of parents who are in favor of alternative learning mode is less than 38%? What is the appropriate alternative hypothesis? А. На: р».38 С. На: р<.38 В. На: р-.38 D. Ha: p + .38 In problem no. 6, formulate the correct null hypothesis. 7. A. The proportion of parents who are in favor of alternative learning mode is 38%. B. The proportion of parents who are in favor of alternative learning mode is not equal to 38%. C. The proportion of parents who are in favor of alternative learning mode has increased by 38%. D. The proportion of parents who are in favor of alternative learning mode is more than 38%. 8. A survey conducted last year by certain barangay officials showed that 40% of the residents owned a private car. This year a new survey is conducted on 375 residents selected randomly from the same barangay. It was found out that 190 of them own a car. Test if the claim is fewer at a = 0.01 level. Formulate the appropriate null hypothesis. Но: р3.40 А. С. Но: р<.40 В. Ha: p =.40 D. Ha: р<.40
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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Question
Answer 6 - 15 questions, just write the correct letter of the answer and no need to show solution.
![10. In a certain senior high school, a study found that 972 out that
1,100 Grade 12 students use smartphones. Using a = 0.10 level,
is there enough evidence to conclude that the percentage of
students who are using smartphones is different from 25%? What
is the appropriate alternative hypothesis?
А.
Ha: p > .25
С. На р%3.25
В.
Ha: p< .25
D. Ha: p + .25
11. In problem no. 10, what type of test is used?
C. one-tailed test
А.
directional
B. one-sided test
D. non-directional
12. The president of a certain food chain claims that 70% of his 20,000
customers are very satisfied with the service they receive. In order
to test the claim, a survey was conducted among 100 customers
randomly chosen. Among them, 90% said that they are satisfied.
Is there enough evidence to say that 70% of the customers are
satisfied at 0.05 level of significance? Formulate the null
hypothesis.
A. Ho: p+ 0.70
В. Но: р- 0.70
С. Н.: р<0.70
D. Ho: р> 0.70
13. In problem no. 12, what is its alternative hypothesis?
С. На: р 3 0.70
D. Ha: р> 0.7о
Ha: p + 0.70
В.
Ha: p < 0.70
А.
14. Suppose a TV network claims that at least 6% of their 15,000
employees are living in a condominium unit in the city. A survey
was conducted randomly among 500 employees. Assume a
significance level of 0.05. What is the appropriate alternative
hypothesis of this study?
С. На: р < 0. 06
D. Ho: р-D 0. 06
A. Ha: p+ 0.06
В. На: р» 0. 06
15. In problem no. 14, what specific type of test is applied?
A. directional
C. one-tailed test
B. left-tailed test
D. non-directional](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fabb4ad0e-49ec-41ce-9614-d43ed644b736%2F6ab0b2f6-8587-4940-a58c-1b97c5bc4805%2Fdfowmk_processed.png&w=3840&q=75)
Transcribed Image Text:10. In a certain senior high school, a study found that 972 out that
1,100 Grade 12 students use smartphones. Using a = 0.10 level,
is there enough evidence to conclude that the percentage of
students who are using smartphones is different from 25%? What
is the appropriate alternative hypothesis?
А.
Ha: p > .25
С. На р%3.25
В.
Ha: p< .25
D. Ha: p + .25
11. In problem no. 10, what type of test is used?
C. one-tailed test
А.
directional
B. one-sided test
D. non-directional
12. The president of a certain food chain claims that 70% of his 20,000
customers are very satisfied with the service they receive. In order
to test the claim, a survey was conducted among 100 customers
randomly chosen. Among them, 90% said that they are satisfied.
Is there enough evidence to say that 70% of the customers are
satisfied at 0.05 level of significance? Formulate the null
hypothesis.
A. Ho: p+ 0.70
В. Но: р- 0.70
С. Н.: р<0.70
D. Ho: р> 0.70
13. In problem no. 12, what is its alternative hypothesis?
С. На: р 3 0.70
D. Ha: р> 0.7о
Ha: p + 0.70
В.
Ha: p < 0.70
А.
14. Suppose a TV network claims that at least 6% of their 15,000
employees are living in a condominium unit in the city. A survey
was conducted randomly among 500 employees. Assume a
significance level of 0.05. What is the appropriate alternative
hypothesis of this study?
С. На: р < 0. 06
D. Ho: р-D 0. 06
A. Ha: p+ 0.06
В. На: р» 0. 06
15. In problem no. 14, what specific type of test is applied?
A. directional
C. one-tailed test
B. left-tailed test
D. non-directional
![6. Before the opening of classes, parents were asked to answer a
survey. Those in favor of alternative learning mode were 1,900 out
of 5,000 randomly selected parents. Using a = 0.10 level, is there
enough evidence to conclude that the percentage of parents who
are in favor of alternative learning mode is less than 38%? What is
the appropriate alternative hypothesis?
А.
На: р».38
С. На: р<.38
В.
Ha: p = .38
D. Ha: р*.38
7. In problem no. 6, formulate the correct null hypothesis.
A. The proportion of parents who are in favor of alternative
learning mode is 38%.
B. The proportion of parents who are in favor of alternative
learning mode is not equal to 38%.
C. The proportion of parents who are in favor of alternative
learning mode has increased by 38%.
D. The proportion of parents who are in favor of alternative
learning mode is more than 38%.
8. A survey conducted last year by certain barangay officials showed
that 40% of the residents owned a private car. This year a new
survey is conducted on 375 residents selected randomly from the
same barangay. It was found out that 190 of them own a car. Test
if the claim is fewer at a = 0.01 level. Formulate the appropriate
null hypothesis.
Но: р%3.40
А.
С. Но: р<.40
В.
Ha: p = .40
D. Ha: р<.40
9. In problem #8, what is the correct alternative hypothesis in
sentence form?
A. The proportion of residents who owned a private car is 40%.
B. The proportion of residents who owned a private car is higher
than 40%.
C. The proportion of residents who owned a private car has
changed to 40%.
D. The proportion of residents who owned a private car is fewer
than 40%.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fabb4ad0e-49ec-41ce-9614-d43ed644b736%2F6ab0b2f6-8587-4940-a58c-1b97c5bc4805%2Fjzwbvt5b_processed.png&w=3840&q=75)
Transcribed Image Text:6. Before the opening of classes, parents were asked to answer a
survey. Those in favor of alternative learning mode were 1,900 out
of 5,000 randomly selected parents. Using a = 0.10 level, is there
enough evidence to conclude that the percentage of parents who
are in favor of alternative learning mode is less than 38%? What is
the appropriate alternative hypothesis?
А.
На: р».38
С. На: р<.38
В.
Ha: p = .38
D. Ha: р*.38
7. In problem no. 6, formulate the correct null hypothesis.
A. The proportion of parents who are in favor of alternative
learning mode is 38%.
B. The proportion of parents who are in favor of alternative
learning mode is not equal to 38%.
C. The proportion of parents who are in favor of alternative
learning mode has increased by 38%.
D. The proportion of parents who are in favor of alternative
learning mode is more than 38%.
8. A survey conducted last year by certain barangay officials showed
that 40% of the residents owned a private car. This year a new
survey is conducted on 375 residents selected randomly from the
same barangay. It was found out that 190 of them own a car. Test
if the claim is fewer at a = 0.01 level. Formulate the appropriate
null hypothesis.
Но: р%3.40
А.
С. Но: р<.40
В.
Ha: p = .40
D. Ha: р<.40
9. In problem #8, what is the correct alternative hypothesis in
sentence form?
A. The proportion of residents who owned a private car is 40%.
B. The proportion of residents who owned a private car is higher
than 40%.
C. The proportion of residents who owned a private car has
changed to 40%.
D. The proportion of residents who owned a private car is fewer
than 40%.
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