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andreyandreev [35.5K]
2 years ago
12

The weights of packets of cookies produced by a certain manufacturer have a Normal distribution with a mean of 202 grams and a s

tandard deviation of 3 grams. What is the weight that should be stamped on the packet so that only 1% of the packets are underweight?
Mathematics
1 answer:
Evgen [1.6K]2 years ago
5 0

Answer:

209.005 gms

Step-by-step explanation:

Given that the weights of packets of cookies produced by a certain manufacturer have a Normal distribution with a mean of 202 grams and a standard deviation of 3 grams.

Let X be the weight of packets of cookies produced by manufacturer

X is N(202, 3) gms.

To find the  weight that should be stamped on the packet so that only 1% of the packets are underweight

i.e. P(X<c) <0.01

From std normal table we find that z value = 2.335

Corresponding x value = 202+3(2.335)

=209.005 gms.

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