Find the indicated z score:.8907 0 z = 1.23. Find the indicated z score:.6331 z 0 z = – 0.34.3669.

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Presentation transcript:

Find the indicated z score: z = 1.23

Find the indicated z score:.6331 z 0 z = –

Find the indicated z score: z =

Find the indicated z score:.4792 z = 0 –

Find the indicated z score: 0 z =

Find the indicated z score: z = – 2.575

Find the indicated z score: If area A + area B =.01, z = __________ A B – z 0 z  or  2.58 =.005

Application of Determining z Scores The Verbal SAT test has a mean score of 500 and a standard deviation of 100. Scores are normally distributed. A major university determines that it will accept only students whose Verbal SAT scores are in the top 4%. What is the minimum score that a student must earn to be accepted?

...students whose Verbal SAT scores are in the top 4%. Mean = 500, standard deviation = 100 = z = 1.75 The cut-off score is 1.75 standard deviations above the mean.

Application of Determining z Scores Mean = 500, standard deviation = 100 = z = 1.75 The cut-off score is (100) = 675.