Chapter 5, Problem 22P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

For each of the following, identify the exam score that should lead to the better grade. In each case, explain your answer.

**a.**A score of*X*= 74 on an exam with*M*= 82 and σ*=*8; or a score of*X =*40 on an exam with μ = 50 and σ = 20.**b.**A score of*X*= 51 on an exam with μ = 45 and σ = 2: or a score of*X =*90 on an exam with μ = 70 and σ = 20.**c.**A score of*X -*62 on an exam with μ = 50 and σ = 8; or a score of*X*= 23 on an exam with μ = 20 and σ = 2.

**a.**

To determine

**To identify:** The exam score which leads to better grade.

Explanation

**Given Info:**

The data represents the two set of exam scores with mean and standard deviation, the score of

**Calculation:**

The general formula of z -score is,

**Case 1:**

*z-*score corresponding to

Substitute the value 74 for X, 82 for M and 8 for

**(b)**

To determine

**To find:** The exam score which leads to better grade.

**c.**

To determine

**To find:** The exam score which leads to better grade.

Sect-5.2 P-1LCSect-5.2 P-2LCSect-5.2 P-3LCSect-5.2 P-4LCSect-5.2 P-1LCASect-5.2 P-2LCASect-5.2 P-3LCASect-5.2 P-4LCASect-5.3 P-1LCSect-5.3 P-2LC

Sect-5.3 P-3LCSect-5.3 P-4LCSect-5.4 P-1LCSect-5.4 P-2LCSect-5.6 P-1LCSect-5.6 P-2LCSect-5.6 P-3LCSect-5.6 P-4LCSect-5.6 P-5LCCh-5 P-1PCh-5 P-2PCh-5 P-3PCh-5 P-4PCh-5 P-5PCh-5 P-6PCh-5 P-7PCh-5 P-8PCh-5 P-9PCh-5 P-10PCh-5 P-11PCh-5 P-12PCh-5 P-13PCh-5 P-14PCh-5 P-15PCh-5 P-16PCh-5 P-17PCh-5 P-18PCh-5 P-19PCh-5 P-20PCh-5 P-21PCh-5 P-22PCh-5 P-23PCh-5 P-24PCh-5 P-25PCh-5 P-26P

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