Business Statistics and Research Methods MCQ Questions and Solutions with Explanations | Commerce
Business Statistics and Research Methods MCQ Questions and answers with easy and logical explanations. Commerce provides you all type of quantitative and competitive aptitude mcq questions with easy and logical explanations. Business Statistics and Research Methods MCQ is important for exams like B.COM, M.COM, BBA, BBM, CA, CS, CMA, CPA, CFA, UPSC, NET, Banking and other commerce department exam. Page-7 section-4
Each section contains 100 MCQs on
Business Statistics and Research Methods .
Which of the following statements relating to the sampling theory are correct?
i. The values of the statistical measures based on the sampled units ae called values of statistic.
ii. In the simple random sampling technique, the element of the population and the unit of the sample are different.
iii. Snow-ball sampling technique is a probability based sampling technique.
iv. The 'law of statistical regularity' and the 'law of inertia of large numbers' are the main bases of the sample to become representative of the population.
Choose the correct answer from the options given below:
Statement I When a null hypothesis gets rejected in statistical hypothesis testing, it is known as II type error in hypothesis testing. Statement II When a sample is small sized and parametric value of the standard deviation is not known, Z-test is the most appropriate test for hypothesis testing.
A machine produced 20 defective articles in a batch of 400. After overhauling, it produced 10% defectives in a batch of 300. Which test of hypothesis can be applied to the above situation to examine whether the machine has improved?
Identify which of the following steps would be included in hypothesis testing.
1. State the null and alternative hypothesis.
2. Set the significance level before the research study.
3. Eliminate all outliers.
4. Obtain the probability value using a computer programme such as SPSS.
5. Compare the probability value to the significance level and make the statistical decision.
Select the correct answer using the options given below
