A soft-drink machine can be regulated so that it discharges an average of μ ounces per cup. If the ounces of fill are normally distributed with standard deviation 0.7 ounce, give the setting for μ so that 32-ounce cups will overflow only 4% of the time. (Round your answer to three decimal places.)

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean and standard deviation , the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

If the ounces of fill are normally distributed with standard deviation 0.7 ounce, give the setting for μ so that 32-ounce cups will overflow only 4% of the time.

This is for which Z when has a pvalue of 1-0.04 = 0.96. So when Z = 1.75.

the 4th choice is the correct one

step-by-step explanation:

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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