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Author Question: Use the standard normal table to find the values of z: z(0.7881). ... (Read 29 times)

cmoore54

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on: Jul 24, 2018
Use the standard normal table to find the values of z: z(0.7881).

Question 2

A machine cuts circular filters from large rolls of material. Specifications call for the filters to have diameters between 1.95 cm and 2.05 cm. If the diameters of the filters are normally distributed with a mean equal to 2.00 cm, then the machine needs to be fine-tuned to give what standard deviation so that only 1 of the filters do not meet specifications? (Give the answer to three decimal places.)


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pallen55

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

0.80

Answer to Question 2

0.019 cm


cmoore54

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Reply 2 on: Jul 24, 2018
Wow, this really help

ultraflyy23

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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