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# Solution: Standard Normal Distribution. In Exercises, assume ISBN: 9780321836960 18

## Solution for problem 20BSC Chapter 6.2

Elementary Statistics | 12th Edition

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Problem 20BSC Problem 20BSC

Standard Normal Distribution. In Exercises, assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. In each case, draw a graph and find the probability of the given scores. If using technology instead of Table, round answers to four decimal places. Less than 1.96

Step-by-Step Solution:

Step 1:

Assume that a randomly selected subject is given a bone density. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1.

Given the probability of score is less than 1.96.

The type of test is determined by the Alternative Hypothesis ( H1 ):

Left tailed test: parameter < value.

Decision rule:  Reject H0 if test statistic. < critical value.

The graph of area under normal curve is given below: ...

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321836960

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