Business Statistics and Research Methods MCQs

Which of the following tests can be applied to ordinal scale data?
1. Chi-square test
2. 'Z' test
3. Kruskal-Wallis test
4. Wilcoxon Mann-Whitney test

Which of the following statement/s is/are true in context of ANOVA?
1. ANOVA is an acronym for "analysis of variance"
2. ANOVA is a parametric statistical hypothesis test to determine whether the means from two or more samples of data come from the same distribution or not.
3. ANOVA is used when one variable is numeric and one is categorical, such as numerical input variables and a classification target variable in a classification task.
4. ANOVA is a class of statistical tests that calculate the ratio between variances values, such as the variance from two different samples.
5. ANOVA tell us the explained and unexplained variance by a statistical test.

Range is the measure of dispersion which is used for the following purpose.
1. Quality control of products.
2. Studying the fluctuation in financial and share market.

Assertion (A): A reasonably large sized sample drawn randomly from a given population contains almost all the characteristics of the population.
Reason (R): As per the sampling theory, the assertion is based only on the 'law of inertia of large numbers'.

With reference to dispersion, which of the following statement is/are correct?
(1) Relative measures of dispersion are independent of units of measurement of data
(2) Standard deviation can be negative
Choose the correct answer from the options given below

Match the items of List-I with the items of List-II and select the correct answer:

List-I	List-II
a. Standard error of mean	1. $$Ha:{\mu _1} \ne {\mu _2}$$
b. Base of point estimate of the mean of the population	2. Values based on all the observations of the population
c. Non-specific hypothesis	3. Mean of the sampling distribution of mean
d. Parameter value of descriptive statistics	4. Standard deviation of the sampling distribution of mean

Which of the following are NOT the sources of secondary data?
1. Interview
2. Questionnaire
3. Observation
4. Unpublished thesis
5. Annual report
Choose the correct option from the following:

State the arithmetic mean of the following distribution:

X (Series) :	145	155	165	175
F (Frequency) :	10	12	15	10

Parametric tests are those that make assumptions about the parameters of the population distribution from which the sample is drawn. This is often the assumption that the population data are normally distributed. Which of the following tests are the examples of Parametric Tests?
1. t-test (paired or unpaired)
2. ANOVA (one-way/two way/three way non-repeated)
3. Linear regression
4. Pearson rank correlation