Business Statistics and Research Methods MCQs

The fourth moment of Poisson Distribution is:

Read the following statement and indicate the correct options from the alternative given below.
Statement I When the null hypothesisis true but as per the hypothesis-testing, it is rejected, it is known as beta type error in hypothesis testing.
Statement II Chi-square test is exclusively a non-parametric test.

With reference to the correlation coefficient, which of the following statement is/are correct?
(1) It measures the degree and direction of linear association between two variables
(2) It measures the degree and direction of non-linear association between two variables
Select the correct answer using the options given below

If the ranks of two attributes in a sample are as follows

R1	1	2	3	4	5
R2	5	4	3	2	1

Then the rank correlation between the two will be

Which of the following relating to normal distribution are not correct?
(i) Co-efficient of skewness is three.
(ii) It is mesokurtic.
(iii) Mean deviation for it is $$\frac{2}{3}$$σ.
(iv) µ ± 2σ covers 94.45% area.
(v) Mean, median and mode are equal.
(vi) The standard normal variate z has mean one and SD zero.

In this the value of rank correlation coefficient will be

Rank X	5	3	4	8	2	1	7	10	6	9
Rank Y	3	7	5	9	2	4	1	10	8	6

The following figures represent the number of book issued at the counter of a commerce library in 11 different ways. Calculate the median.
96, 180, 98, 75, 270, 20, 102, 100, 94, 75, 200

Match the following.

List-I	List-II
a. Range	1. Summing up the consecutive frequencies
b. Width of the interval	2. Range/Number of classes
c. Open ended class	3. Highest value-lowest value in data
d. Cumulative frequency	4. No lower limit of first group or no upper limit of the last group

The most common use of Kruskal-Wall is test is
1. one nominal variable.
2. one measurement variable.
Select the correct answer using the options given below