Testing of Hypothesis

A statement made about a population for testing purpose is called?

• Statistic

• Hypothesis

• Level of Significance

• Test-Statistic

If the assumed hypothesis is tested for rejection considering it to be true is called?

• Null Hypothesis

• Statistical Hypothesis

• Simple Hypothesis

• Composite Hypothesis

Answer explanation

If the assumed hypothesis is tested for rejection considering it to be true is called Null Hypothesis. It gives the value of population parameter.

A hypothesis which defines the population distribution is called?

• Null Hypothesis

• Statistical Hypothesis

• Simple Hypothesis

• Composite Hypothesis

Answer explanation

A hypothesis which defines the population distribution is called as Simple hypothesis. It specifies all parameter values.

The rejection probability of Null Hypothesis when it is true is called as?

• Level of Confidence

• Level of Significance

• Level of Margin

• Critical Region

Answer explanation

Level of Significance is defined as the probability of rejection of a True Null Hypothesis. Below this probability a Null Hypothesis is rejected.

7. The point where the Null Hypothesis gets rejec

The point where the Null Hypothesis gets rejected is called as?

• Significant Value

• Rejection Value

• Acceptance Value

• Critical Value

Answer explanation

The point where the Null Hypothesis gets rejected is called as Critical Value. It is also called as dividing point for separation of the regions where hypothesis is accepted and rejected.

If the Critical region is evenly distributed then the test is referred as?

• Two tailed

• One tailed

• Three tailed

• Zero tailed

Answer explanation

In two tailed test the Critical region is evenly distributed. One region contains the area where Null Hypothesis is accepted and another contains the area where it is rejected.

The type of test is defined by which of the following?

• Null Hypothesis

• Simple Hypothesis

• Alternative Hypothesis

• Composite Hypothesis

Answer explanation

Alternative Hypothesis defines whether the test is one tailed or two tailed. It is also called as Research Hypothesis.

Which of the following is defined as the rule or formula to test a Null Hypothesis?

• Test statistic

• Population statistic

• Variance statistic

• Null statistic

Answer explanation

Test statistic provides a basis for testing a Null Hypothesis. A test statistic is a random variable that is calculated from sample data and used in a hypothesis test.

Consider a hypothesis H₀ where ϕ₀ = 5 against H₁ where ϕ₁ > 5. The test is?

• Right tailed

• Left tailed

• Center tailed

• No Tailed

Answer explanation

In the given example since H₁ lies to the right of the H_o that is the Null Hypothesis the test is referred as a Right tailed test.

Type 1 error occurs when?

• We reject H₀ if it is True

• We reject H₀ if it is False

• We accept H₀ if it is True

• We accept H₀ if it is False

Answer explanation

In Testing of Hypothesis Type 1 error occurs when we reject H₀ if it is True. On the contrary a Type 2 error occurs when we accept H₀ if it is False.