RESEARCH METHODOLOGY

Detailed explanation-1: -For example, if the sample size was 19, then we would use the t distribution with df = 19-1 = 18 degrees of freedom and proceed exactly as we did in Chapter 4, except that now we use the t table.

Detailed explanation-2: -Answer and Explanation: Given-The number of data in the test or total sample size is N=20 . Hence, the degrees of freedom for the test of the significance of the correlation coefficient (r) is 18 .

Detailed explanation-3: -There are n = 29 observations, and the two independent variables use a total of two DF. The degrees of freedom formula for total DF = n – 1, which is 29 – 1 = 28 in our example.