(A) α value
(B) p value
(C) test statistic
(D) confidence interval
Category: Statistics Mcqs
Which statistical test is used to compare group means in a sample?
(A) Correlation
(B) Regression
(C) Covariance
(D) ANOVA
A hypothesis is a theory (or an assumption) based on
(A) sufficient evidence
(B) insufficient evidence
(C) data
(D) experimentation
In case of 90% confidence interval, alpha (α) is equal to
(A) 0.01
(B) 0.05
(C) 0.1
(D) 0.5
Which probability distribution is used to model the time elapsed between events?
(A) Exponential
(B) Poisson
(C) Normal
(D) Gamma
Which measure is used to determine whether the distribution is heavy-tailed or light-tailed?
(A) skewness
(B) kurtosis
(C) variance
(D) standard deviation
If the distribution is symmetric about mean then the skewness is
(A) 0
(B) 1
(C) positive
(D) negative
The mean and variance of standard normal distribution is _____ and _____ respectively.
(A) 0, 1
(B) 1, 0
(C) –1, 1
(D) –∞, ∞
“Rolling of a die” is an example of a random
(A) event
(B) outcome
(C) experiment
(D) sample space
he mean, mode, and median of the data set: 5, 4, 10, 12, 1, 5, 3, 7, 15, and 8 is respectively
(A) 5, 6, 7
(B) 7, 6, 5
(C) 6, 5, 7
(D) 7, 5, 6