Business Statistics - Study Mode

[#236] The following statements relate to sampling distributions. Choose the correct statements being correct or incorrect. Statement I Sampling distribution of mean is normally distributed irrespective of the type of population distribution and size of samples. Statement II The standard deviation of the sampling distribution of mean is less than the standard deviation of the population distribution.
Correct Answer

(B) Statement II is correct, but Statement I is incorrect

[#237] Which one of the following expressions relates to an event which represents the occurrence of either A or B or both?
Correct Answer

(A) $$A cup B$$

[#238] Match the following List-I (Information's quality) List-II (Elements) a. Impartiality 1. No bias b. Validity 2. Purpose of decision making c. Reliability 3. Accuracy d. Age 4. Old
Correct Answer

(B) a-1, b-2, c-3, d-4

[#239] Probable error is
Correct Answer

(A) $$.6745left( {frac{{1 - {r^2}}}{{sqrt N }}} ight)$$

[#240] Questioning, experimentation and . . . . . . . . are the examples of primary method.
Correct Answer

(A) observation