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Andrews [41]
3 years ago
13

Homework:Assignment 3 Question 20 Score: 0 of 1 point A vending machine dispenses coffee into ​-ounce cup. The amount of coffee

dispensed into the cup is normally distributed with a standard deviation of ounce. You can allow the cup to overfill ​% of the time. What amount should you set as the mean amount of coffee to be​ dispensed?
Mathematics
1 answer:
xxMikexx [17]3 years ago
8 0

Answer:

19.92

Step-by-step explanation:

To overfill 5% of the time ;

The Zscore (value) to the left of (1 - 0.05) = 0.95 is 1.645

Using this Zscore value with the Zscore formula :

Zscore = (x - μ) / σ

σ = 0.05 ; x = 20 ounce

Substituting into the Zscore formula :

1.645 = (20 - μ) / 0.05

1.645*0.05 = 20 - μ

0.08225 = 20 - μ

μ = 20 - 0.08225

μ = 19.91775

μ = 19.92

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