Ignou Solved Assignments

Q1 Ten individuals are chosen at random, from a normal population and their weights (in kg) are found to be 63, 63, 66, 67, 68, 69, 70, 70, 71 and 71. In the light of this data set, test the claim that the mean weight in population is 66 kg at 5% level of significance. Ans. Weighted mean = Σwx/Σw Σ = the sum of (in other words…add them up!). w =...