Question

An organization surveyed people in two cities about their favourite movie genre. A chi-square test is performed and revealed the results as shown in the "Graphs Document". Suppose B is larger than 6, what is the value of A? Ο Ο Ο Ο Ο

Answer 1

Note: Expected value= Row Total*Column Total/Table total

So, B= (6+A)*(23)/(33+A)

After finding B, we solve for A above:

Chi Square Value = (o-E)? .. (6-B)² 0.76466 E ale or 36-12B + B2 = 0.764663 Lo B2 - 2.764663 +36=0 or B = 8.558 Csince BS 6. so it - (by quadretic equation cannot be 4.207) Now Ba row total of Toronto x colomatotal Horror (6+ B² 23 X ) Table Total (33+A)

as (33+AC 8.558) = 23X6+A) con, 28 2:414+8.558 A1 = 138 +23 A 2 or 144.414 = 14.442 A tar A = 10 srebro so option a) loto is correct,