Which non-parametric test is the alternative to one-way ANOVA?
Correct answer D. Kruskal-Wallis test
Subject / 721 questions
Statistics MCQs
Page 7 of Statistics multiple-choice questions with answers. Tap an option to check yourself.
Page 7 of 37
When is a non-parametric test used for data?
Correct answer C. Both a and b
In a symmetrical distribution, how are the mean, median and mode related?
Correct answer A. Coincide
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When the arithmetic mean is greater than the mode, the distribution is?
Correct answer B. Positively skewed
What is the range of the values 5, 5, 5, 5?
Correct answer A. 0
What is the degree to which numerical data tend to spread around an average value called?
Correct answer B. Dispersion
If y = bx + a, what is the mean deviation of y?
Correct answer D. |b| × M.D. of x
Who introduced a relative measure of skewness?
Correct answer B. Karl Pearson
For grouped data, the range is the difference between?
Correct answer C. Two extreme class boundaries
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In a normal distribution, mean deviation is approximately 4/5 of which measure?
Correct answer C. Standard deviation
How is the corrected variance (Sheppard’s correction) defined?
Correct answer B. Variance of data − h²/12
The normal distribution is the probability distribution of what kind of random variable?
Correct answer B. Continuous
How does the mean deviation compare with the standard deviation?
Correct answer A. Less than S.D.
How many parameters does the normal distribution have?
Correct answer B. Two
The standard deviation and variance are ____ of change of origin. Which word fills the blank?
Correct answer A. Independent
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In a normal distribution, the quartile deviation is approximately how many times the standard deviation?
Correct answer D. 0.6745
In a normal distribution, if µ2 = σ², what is the value of µ4?
Correct answer C. 3σ⁴
In a normal distribution, what percentage of values fall within x̄ ± σ?
Correct answer A. 68.27%
Which expression gives the probability density function f(z) of the standard normal distribution?
Correct answer C. 1/(σ√2π) e^(-1/2 z²)
The first moment about the origin is always equal to the?
Correct answer A. A.M.