Question: ans A student scored 65 on a calculus test that had a mean of 50 and a standard deviation of 10; she scored 30 on

ans

A student scored 65 on a calculus test that had a mean of 50 and a standard deviation of 10; she scored 30 on a history test with a mean of 25 and a standard deviation of 5. Compare her relative positions on the two tests. HINT: Compute the Z score for each! Z= (X- X(bar))/S = (65 -50)/10 = 1.5 for calculus (a) Z = (30-25)/5 = 1.0 for History Therefore, calculus Z= (X- X(bar))/S = (65 -50)/10 = 1.5 for calculus Z = (30-25)/5 = 1.0 for History Therefore, History Z= (X- X(bar))/S = (50 -65)/10 = -1.5 for calculus () Z = (25-30)/5 = -1.0 for History Therefore, History ) None of the above

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