HCU MCA 2017 Paper

Someone claims to have found a long lost work by Mr. Khuswant Singh. She ask you to decide whether or not the book was actually written by Mr. Khuswant Based on the assumpation that all his books have similar word frequencies. You by a copy of “Train of Pakistan” (B1) written by Mr. khuswant and count the frequencies of certain common words on some reandomly selected pages. You do the same thing for the ‘long lost work’ (B2). When you perform the test, you get a score of 78.93. For 3 degrees of freedom, Chi-Square value for 0.01 significance level is 6.25. What do you conclude about ‘long lost work’?