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A population of values has a normal distribution with ? = 127.5 and ? = 96.9...

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Basic Math

A population of values has a normal distribution with ? = 127.5and ? = 96.9 . You intend to draw a random sample of size n = 150.

Find the probability that a single randomly selected value isgreater than 114.8. P(x > 114.8) =

Find the probability that a sample of size n = 150 is randomlyselected with a mean greater than 114.8. P( ¯ x > 114.8) =

Enter your answers as numbers accurate to 4 decimal places.Answers obtained using exact z-scores or z-scores rounded to 3decimal places are accepted.

Answer & Explanation Solved by verified expert
4.5 Ratings (990 Votes)
Solution Given that mean 1275standard deviation 969Px 1148 1 Px 1148 1 Px 1148 1275 969    See Answer
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