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Free download in PDF Hypothesis Testing Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(1)
A statement made about a population for testing purpose is called?
[A]
Statistic
[B]
Hypothesis
[C]
Level of Significance
[D]
Test-Statistic
(2)
A statement whose validity is tested on the basis of a sample is called?
[A]
Null Hypothesis
[B]
Statistical Hypothesis
[C]
Simple Hypothesis
[D]
Composite Hypothesis
Answer: Statistical Hypothesis
(3)
The rejection probability of Null Hypothesis when it is true is called as?
[A]
Level of Confidence
[B]
Level of Significance
[C]
Level of Margin
[D]
Level of Rejection
Answer: Level of Significance
(4)
If the Critical region is evenly distributed then the test is referred as?
[A]
Two tailed
[B]
One tailed
[C]
Three tailed
[D]
Zero tailed
(5)
Which of the following is defined as the rule or formula to test a Null Hypothesis?
[A]
Test statistic
[B]
Population statistic
[C]
Variance statistic
[D]
Null statistic
(6)
Consider a hypothesis where H0 where ϕ0 = 23 against H1 where ϕ1 < 23. The test is?
[A]
Right tailed
[B]
Left tailed
[C]
Center tailed
[D]
Cross tailed
(7)
Type 1 error occurs when?
[A]
We reject H0 if it is True
[B]
We reject H0 if it is False
[C]
We accept H0 if it is True
[D]
We accept H0 if it is False
Answer: We reject H0 if it is True
(8)
Alternative Hypothesis is also called as?
[A]
Composite hypothesis
[B]
Research Hypothesis
[C]
Simple Hypothesis
[D]
Null Hypothesis
Answer: Research Hypothesis
(9)
A Type I error occurs when we:
[A]
Reject A False Null Hypothesis
[B]
Reject A True Null Hypothesis
[C]
Do Not Reject A False Null Hypothesis
[D]
Do Not Reject A True Null Hypothesis
Answer: Reject A True Null Hypothesis
(10)
If a hypothesis is rejected at the 0.025 level of significance, it:
[A]
Must Be Rejected At Any Level
[B]
Must Be Rejected At The 0.01 Level
[C]
Must Not Be Rejected At The 0.01 Level
[D]
May Or May Not Be Rejected At The 0.01 Level
Answer: May Or May Not Be Rejected At The 0.01 Level
(11)
In a one-tail test for the population mean, if the null hypothesis is not rejected when the alternative hypothesis is true, then:
[A]
A Type I Error Is Committed
[B]
A Type Ii Error Is Committed
[C]
A Correct Decision Is Made
[D]
A Two-Tail Test Should Be Used Instead Of A One-Tail Test
Answer: A Type Ii Error Is Committed
(12)
If we do not reject the null hypothesis, we conclude that:
[A]
there is enough statistical evidence to infer that the alternative hypothesis is true
[B]
there is not enough statistical evidence to infer that the alternative hypothesis is true
[C]
there is enough statistical evidence to infer that the null hypothesis is true
[D]
the test is statistically insignificant at whatever level of significance the test was conducted at
Answer: there is not enough statistical evidence to infer that the alternative hypothesis is true
(13)
The purpose of hypothesis testing is to:
[A]
test how far the mean of a sample is from zero
[B]
determine whether a statistical result is significant
[C]
determine the appropriate value of the significance level
[D]
derive the standard error of the data
Answer: determine whether a statistical result is significant
(14)
In hypothesis testing, what level of significance would be most appropriate to choose if you knew that making a Type I error would be more costly than making a Type II error?
[A]
0.005
[B]
0.025
[C]
0.050
[D]
0.100
(15)
To test a hypothesis involving proportions, both np and n(1-p) should
[A]
Be at least 30
[B]
Be greater than 5
[C]
Lie in the range from 0 to 1
[D]
Be greater than 50
Answer: Be greater than 5
(16)
What assumption is being made when we use the t-distribution to perform a hypothesis test?
[A]
That the underlying distribution has more then one modal class
[B]
That the underlying population has a constant variance
[C]
That the underlying population has a non-symmetrical distribution
[D]
That the underlying population follows an approximately Normal distribution
Answer: That the underlying population follows an approximately Normal distribution
(17)
The p-value obtained from a classical hypothesis test is:
[A]
the probability that the null hypothesis is true given the data
[B]
the probability that the null hypothesis is false given the data
[C]
the probability of observing the data or more extreme values if the null hypothesis is true
[D]
the probability of observing the data or more extreme values if the alternative hypothesis is true
Answer: the probability of observing the data or more extreme values if the null hypothesis is true
(18)
Which of the following statements about hypothesis testing is true?
[A]
If the p-value is greater than the significance level, we fail to reject Ho
[B]
A Type II error is rejecting the null when it is actually true
[C]
If the alternative hypothesis is that the population mean is greater than a specified value, then the test is a two-tailed test
[D]
None of the above statements are true
Answer: If the p-value is greater than the significance level, we fail to reject Ho
(19)
Suppose that we reject a null hypothesis at the 5% level of significance. For which of the following levels of significance do we also reject the null hypothesis?
[A]
6%
[B]
2.5%
[C]
4%
[D]
3%
(20)
Which of the following p-values will lead us to reject the null hypothesis if the significance level of the test if 5%?
[A]
0.15
[B]
0.10
[C]
0.06
[D]
0.025
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