The memorizing ability of elder person in high income group and low income group is to be measured. Two independent samples of sizes n1 = 5 and n2 = 8 considered. each person is given a test and scores are recorded as follows. Assume populations are normally distributed. 1st sample - 78, 65, 89, 95, 72 2nd sample - 68, 52, 81, 79, 23, 91, 73, 59 Assuming that the population variances are equal, find a, b such that, P(a< b) = 0.9 1 Hint: You may use that Fn1,n2,0.95 Fn2,n1,0.05

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.