Business Statistics and Research Methods MCQs

Match the following in the term of Terms and Explanation: List-I (Terms) List-II (Explanation) a. $$\frac{{{Z^2} \cdot \sigma _p^2}}{{{e^2}}}$$ 1. Measurement for Kurtosis b. $$\frac{{\left| {\overline {{X_1}} - \overline {{X_2}} } \right|}}{{\sqrt {\sigma _p^2\left( {\frac{1}{{{n_1}}} + \frac{1}{{{n_2}}}} \right)} }}$$ 2. Calculated value of $$F$$ ratio c. $$\frac{{{\mu _4}}}{{\mu _2^2}}$$ 3. Statistical approach to find out the size of sample d. $$\frac{{\sigma _{{s_1}}^2}}{{\sigma _{{s_2}}^2}}$$ 4. Calculated $$z$$ value of mean differences

The under root of two . . . . . . . . coefficients gives us the value of correlation coefficients.

Among the following choose the most suitable 'test' that can be applied to examine the influence of one factor on different groups.

Consider the following statement and identify the wrong statements. Statement I: Accepting null hypothesis, when it is false, is called a level of significance. Statement II: $$1 - \alpha $$ is called power of a test. Statement III: Critical value of $$Z$$ - static for two-tailed test at 5% level of significance is 1.96.

In case of conditional probability (A and B) = ?

In a predominantly illiterate area consisting of 10,000 population, data has to be collected from 10% of them. The appropriate technique for data collection would be

Which one of the following formulas is used to calculate the standard error of coefficient of correlation between 25 paired observations of a sample?

Which of the following is not a condition of the binomial distribution?

Which one of the following is a false description?