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Solution: Standard Normal Distribution. In Exercises, assume

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 20BSC Chapter 6.2

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

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:

Answer:

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

Chapter 6.2, Problem 20BSC is Solved
Step 3 of 3

Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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Solution: Standard Normal Distribution. In Exercises, assume

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