PnS Q4W2 Pre-Test Apr2722
Quiz by Russell Van Erick Ramos
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- Q1
What statistical test is applicable if the population standard deviation is known and the number of samples is greater than 30?
z -test
t -test
H -test
U - test
30s - Q2
What statistical test is applicable if the population standard is unknown and the number of samples is less than 30?
t -test
H -test
z -test
U - test
30s - Q3
What statistical test is applicable if the population standard deviation is known and the number of samples is less than 30?
U - test
H -test
t -test
z -test
30s - Q4
For no. 4-7 The SSG president claims that the average number of hours the students study their lesson is more than 30 hours per week. If 30 students are surveyed and their average is 36 hours per week with standard deviation of 4 hours, is there sufficient evidence to reject the SSG president’s claim at α = 0.05 level of significance?
4. Which of the following statements is a correct null hypothesis?
H0: μ<30
H0: μ≠30
H0: μ>30
H0: μ=30
30s - Q5
For no. 4-7 The SSG president claims that the average number of hours the students study their lesson is more than 30 hours per week. If 30 students are surveyed and their average is 36 hours per week with standard deviation of 4 hours, is there sufficient evidence to reject the SSG president’s claim at α = 0.05 level of significance?
5. Which of the following statements is a correct alternative hypothesis?
H1: μ≠30
H1: μ>30
H1: μ=30
H1: μ<30
30s - Q6
For no. 4-7 The SSG president claims that the average number of hours the students study their lesson is more than 30 hours per week. If 30 students are surveyed and their average is 36 hours per week with standard deviation of 4 hours, is there sufficient evidence to reject the SSG president’s claim at α = 0.05 level of significance?
6. Is the population standard deviation known?
Maybe
Yes
No
Cannot be determined.
30s - Q7
For no. 4-7 The SSG president claims that the average number of hours the students study their lesson is more than 30 hours per week. If 30 students are surveyed and their average is 36 hours per week with standard deviation of 4 hours, is there sufficient evidence to reject the SSG president’s claim at α = 0.05 level of significance?
7. What is the applicable statistical test?
z -test
H -test
U - test
t -test
30s - Q8
What is the applicable statistical test for the following given: hypothesis test on population mean; n=25; σ=2.5?
H -test
t -test
U - test
z -test
30s - Q9
What is the applicable statistical test for the following given: hypothesis test on population mean; n=50; s=7.2?
z -test
H -test
U – test
t -test
30s - Q10
Which of the following is INCORRECT about formulating hypothesis?
The null hypothesis usually corresponds to the assumption that no change occurs.
There should always be an equal sign in the null hypothesis
The choice of the alternative hypothesis depends on the purpose of the test.
The alternative hypothesis usually corresponds to the assumption that no change occurs.
30s