Worksheetshypothesis testing (2)
Total questions: 20
Worksheet time: 14mins
In a right-tailed test with 𝛼 = 0.01, the critical value of z is:
A. 1.28
B. 1.65
C. 1.96
D. 2.33
2. The value that separates a rejection region from an acceptance region is called a ___________.
A. Parameter
B. Hypothesis
C. Critical Value
D. Significance Level
5. In the two-tailed test, the rejection region lies on ___________ of the normal distribution.
A. center
B. left tail
C. right tail
D. both tails
8. It refers to a value calculated from sample data which is needed in deciding whether the null hypothesis is rejected or not.
A. test statistics
B. critical region
C. null hypothesis
D. alternative hypothesis
9. What test statistic will be used if the sample size is above 30?
A. t-test
B. z-test
C. population mean
D. standard deviation
10. What test statistic can be used when the population standard deviation is known?
A. t-test
B. z-test
C. population mean
D. standard deviation
10. What test statistic can be used when the population standard deviation is known?
A. t-test
B. z-test
C. population mean
D. standard deviation
12. Which test statistic will be used if the sample size is 15?
A. t-test
B. z-test
C. cannot be determined
D. neither t-test nor z-test
Suppose the P-value for a hypothesis test is 0.0304. Using a = 0.05, what is the appropriate conclusion?
a) Reject the null hypothesis
b) Reject the alternative hypothesis
c) Fail to reject the null hypothesis
d) Fail to reject the alternative hypothesis
When p-value is greater than alpha we:
Reject Ho
Fail to reject Ha
Fail to reject Ho
Reject Ha
What is the SYMBOL for the ALTERNATIVE HYPOTHESIS?
H0
H1
α
None of these
Determine the correct order of hypothesis testing.
A. State Null Hypothesis
B. State Conclusion
C. Compare P-value and Significance Level
D. Compute Test Statistic
D-A-B-C
A-C-D-B
A-D-C-B
D-C-B-A
You do not need BOTH null and alternate hypotheses when testing
True
False
H0: μ = k
H1: μ ≠ k
Left-tailed test
Two-tailed test
Right-tailed test
H0: μ = k
H1: μ > k
Left-tailed test
Right-tailed test
