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3 years ago

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The fill weight of a certain brand of adult cereal is normally distributed with a mean of 910 grams and a standard deviation of

5 grams. We calculated the value of z for a specific box of this brand of cereal and the z value was negative. This negative z value indicates that
A.We made a mistake in our calculations, as z must always be a nonnegative number.
B. The fill weight exceeds 910 grams.
C. The fill weight is less than 910 grams.
D. The fill weight is equal to 910 grams

1 answer:

Murljashka [212]3 years ago

8 0

Answer:

C. The fill weight is less than 910 grams.

Step-by-step explanation:

To normalize a given stadistical we do:

$\frac{X - \mu }{\sigma} \\Where:\\X = $ the weight of the cereal box\\\mu = $ the mean of 910 grams\\\sigma = $ the standard deviation$

To be negative then, X should be lower than the mean.

Therefore, is the nevatige value of Z represent the value is below the mean therefore, below 910 gram

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