The relief time provided by a standard dose of a popular children’s allergy medicine averages 7.9 | MathCelebrity Forum

The relief time provided by a standard dose of a popular children’s allergy medicine averages 7.9

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The relief time provided by a standard dose of a popular children’s allergy medicine averages 7.9 hours with a standard deviation of 2.2 hours. Use Table 1.

a. Determine the percentage of children who experience relief for less than 6.4 hours if the relief time follows a normal distribution. (Round your answer to 2 decimal places.)

Using our normal distribution calculator, we get
Answer = 0.25
 
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