Business Statistics And Research Methods - Study Mode
[#391] A frequency distribution has three groups in which the total number of frequencies are 100, 125 and 150 and their mean are 20, 15 and 25 respectively. The collective mean of the entire distribution will be
Correct Answer
(A) 20.3
[#392] Which of the following is the first step in starting the research process?
Correct Answer
(C) Identification of problem
[#393] Null hypothesisis always . . . . . . . . while alternate hypothesis gives a/an . . . . . . . . value.
Correct Answer
(A) specific, approximate
[#394] Which of the following is NOT a method of collection of primary data?
Correct Answer
(A) Referring to economic reports published by the Government
[#395] The correlation coefficient between X and Y is directly proportional to
Correct Answer
(C) Covariance of X and Y