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Author Question: Assume the standard normal curve and determine the probability or area between z = -1.28 and z = ... (Read 91 times)

RODY.ELKHALIL

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on: Jun 24, 2018
Assume the standard normal curve and determine the probability or area between z = -1.28 and z = 1.28.

Question 2

In a production of 1000 plastic moldings, 75 were incompletely formed and had to be discarded. Based on these data the total production of plastic moldings should have what estimated proportion of incompletely formed moldings?


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patma1981

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Reply #1 on: Jun 24, 2018
Answer to Question 1

0.7994

Answer to Question 2

0.075


RODY.ELKHALIL

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Reply #2 on: Jun 24, 2018
Thank you :)


patma1981

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Reply #3 on: Jun 24, 2018
Happy to help you


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