standard scores and normal distribution

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Question

a final in math has a mean of 73 with a standard deviation of 7.73. in a random sample of 24 students the test score of the sample is computed. the test scores are normally distributed what percentage of sample means are less than 69? please show work so I can do other problems. Apr 30 2012 05:44 PM

 

Solution ID:609172 | This paper was updated on 26-Nov-2015

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