Business Statistics And Research Methods - Study Mode
[#576] The . . . . . . . . is a set of values for testing statistic, for which the null hypothesis is rejected in a hypothesis test.
Correct Answer
(C) Either A or B
[#577] Calculate mean from the following data. Age (X) Frequency (f) 17 2 18 1 19 1 20 2 22 3 23 1
Correct Answer
(C) 20
[#578] The relationship between correlation coefficient and coefficient of determination can be expressed as follows
Correct Answer
(A) Coefficient of determination is the squares of correlation coefficient
[#579] Karl Pearson's correlation coefficient is calculated by which of the following formula?
Correct Answer
(B) $$frac{{{ ext{Covariance of X and Y}}}}{{sqrt {{ ext{Var}}{ ext{.}}left( { ext{X}}
ight),{ ext{Var}}{ ext{.}}left( { ext{Y}}
ight)} }}$$
[#580] Parametric tests are those that make assumptions about the parameters of the population distribution from which the sample is drawn. This is often the assumption that the population data are normally distributed. Which of the following tests are the examples of Parametric Tests? 1. t-test (paired or unpaired) 2. ANOVA (one-way/two way/three way non-repeated) 3. Linear regression 4. Pearson rank correlation
Correct Answer
(D) 1, 2, 3 and 4