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WorksheetsTesting of Hypotheses
Total questions: 10
Worksheet time: 3mins
The rejection probability of Null Hypothesis when it is true is called as?
Level of Confidence
Level of Significance
Level of Margin
Level of Rejection
If the Critical region is evenly distributed then the test is referred to as?
Two tailed
One tailed
Three tailed
Zero tailed
What is the assumption made for performing the hypothesis test with T distribution?
the distribution is non-symmetric
the distribution has more than one modal class
the distribution has a constant variance
the distribution follows a normal distribution
The range of Level of Significance lies between ____________
-∞ and 0
-∞ and ∞
0 and ∞
0 and 1
A T-test sample has 7 pairs of samples. The distribution should contain ____________
16 degrees of freedom
15 degrees of freedom
5 degrees of freedom
6 degrees of freedom
Which of these distributions is used for a testing hypothesis?
Normal Distribution
Chi-Squared Distribution
Gamma Distribution
Poisson Distribution
One problem with hypothesis testing is that a real effect may not be detected. This problem is most likely to occur when
the effect is small and the sample size is small.
the effect is large and the sample size is small.
the effect is small and the sample size is large.
the effect is large and the sample size is large.
Which of the following p-values will lead us to reject the null hypothesis if the significance level of the test is 5%?
0.15
0.10
0.06
0.025
If my null hypothesis is ‘Dutch people do not differ from English people in height’, what is my alternative hypothesis?
All of the statements are plausible alternative hypotheses.
Dutch people are taller than English people.
English people are taller than Dutch people.
Dutch people differ in height from English people.
The following are percentages of fat found in 5 samples of each of two brands of baby food:
A: 5.7, 4.5, 6.2, 6.3, 7.3
B: 6.3, 5.7, 5.9, 6.4, 5.1
Which of the following procedures is appropriate to test the hypothesis of equal average fat content in the two types of ice cream?
Paired t-test with 5 d.f
Two samples t-test with 8 d.f
Paired t-test with 4 d.f
Two samples t-test with 9 d.f
