Business Statistics - Study Mode
[#286] Statement I A hypothesis test for comparing the variances of two independent populations with the help of variances of two small samples is known as chi-square test. Statement II To test the hypothesis that the population standard deviation has a specific value on the basis of the values of sample standard deviation of small sized sample, F-test isrelevant.
Correct Answer
(B) Both statements are incorrect
[#287] Given What will be at 'A' point?
Correct Answer
(A) Density
[#288] The incidence of occupational disease in an industry in such that the workmen have 20% chance of suffering from it. What is the probability that out of 6 workmen 4 or more will contact disease?
Correct Answer
(C) $$frac{{53}}{{3125}}$$
[#289] When a researcher want to select a representative sample to asses different parameters from a large sized finite heterogeneous population, which one of the following sampling techniques is the most appropriate?
Correct Answer
(C) Stratified random sampling
[#290] What will be the probability that one is king and other is queen?
Correct Answer
(A) $$frac{2}{{169}},,frac{2}{{663}}$$