Test: Test #1 Chapters 1-3 his Question: 1 pt unusual Ko soones from those that

Question

Test: Test #1 Chapters 1-3 his Question: 1 pt unusual Ko soones from those that are usual? Consider a value to be unusual What are the r scores that separate the unusual IQsoones from those that are usual? The lower z soone boundary is The higher zsoore is boundary (Simplry your answer) What are the IQ wooresthat separate the unusual IQ soones tomthose that The lower bound a soove (simply your answer) The higher bound a score (smplry your answer. Inter your answer in each of the answer boxes. Connder the Poupat a cores that are unusua. What are asooves that separate he unnuw This Test 16 pts possb

Explanation / Answer

= 104

= 14

Z = (X - ) /

a) Lower z score boundary = -2

b) Upper z score boundary = 2

c) Z = -2

or, (X - ) / = -2

or, (X - 104) / 14 = -2

or, X = -2 * 14 + 104

or, X = 76

Lower bound IQ score = 76

d) Z = 2

or, (X - ) / = 2

or, (X - 104) / 14 = 2

or, X = 2 * 14 + 104

or, X = 132

Lower bound IQ score = 132

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