ECO 254 (CBT 3)
If the Ikeja study center director of NOUN affirm that EBOLA patient was found among NOUN students in the center and which was later found out that the information was false, which means accepting what is not true, this is an example of __________
Type two error
Type four error
Type three error
Type one error
___________ is a statistical test in which the critical area of a distribution is one-sided so that it is either greater than or less than a certain value.
One tailed test
Two tailed test
Hypothesis test
All of the options
__________ is a statistical test in which the critical area of a distribution is two sided and tests whether a sample is either greater than or less than a certain range of values.
Two tailed test
One tailed test
Three tailed test
None of the options
A midwife claims that the mean weight of babies delivered at her maternity clinic is 3.7kg. A statistician takes a sample of 6 babies and obtains the following weights: 2.7, 2.4, 3.1, 3.4, 3.6, 2.6. Test the midwife's claim at 0.05 level of significance.
0.32
38.1
32.1
None of the options
What is the probability of getting a four in one throw of a die?
1/3
1/4
1/5
1/6
The standard deviation is to the mean as the ________ is to the regression line.
Z-score
SSR
Coefficient of determination
Standard error of the estimate
The ________ distribution has been applied to model the behaviour of random variables limited to intervals of finite length in a wide variety of disciplines.
Gamma
Uniform
Cauchy
None of the options
__________ measure is the standard way of assigning a measure to a subset of an n-dimensional volume.
Lebesgue
Statistical
Probability
None of the options
Given a population consisting of numbers 1, 2, 3, 4, 5, 6. The mean of the population is _________
3.3
3.2
3.5
3
Uniform distribution can also be seen as a statistical distribution in which every possible outcome has ___________
A chance
An equal chance
A clearer chance
Either an equal chance or unequal chance
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