Chapter 6.3, Problem 2LC

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

Scores on the Mathematics section of the SAT Reasoning Test form a normal distribution with a mean of μ = 500 and a standard deviation of σ = 100.

**a.**If the state college only accepts students who score in the lop 60% on this test, what is the minimum score needed for admission?**b.**What is the minimum score necessary to be in the lop 10% of the distribution?**c.**What scores form the boundaries for the middle 50% of the distribution?

**(a)**

To determine

**To find:** What is the minimum score needed for admission.

Explanation

**Calculation:**

The formula for z score is,

Substitute the value 500 for

**(b)**

To determine

**To find:** The minimum score needed for admission.

**(c)**

To determine

**To find:** The scores from the boundaries for the middle 50% of the distribution.

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