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Author Question: The contents of soft drink bottles are normally distributed with a mean of 12 ounces and a standard ... (Read 273 times)

wrbasek0

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on: Jun 24, 2018
The contents of soft drink bottles are normally distributed with a mean of 12 ounces and a standard deviation of 1 ounce.
 a. What is the probability that a randomly selected bottle will contain more than 10 ounces of soft drink?
 b. What is the probability that a randomly selected bottle will contain between 9.5 and 11 ounces?
  c. What percentage of the bottles will contain less than 10.5 ounces of soft drink?

Question 2

A simple random sample of 144 items resulted in a sample mean of 1080 . The population standard deviation is known to be 240 . Develop a 95 confidence interval for the population mean.


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Dunkey

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

a. .9772
b. .1525
c. 6.68

Answer to Question 2

1040.8 to 1119.2


wrbasek0

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Reply 2 on: Jun 24, 2018
Gracias!

mcabuhat

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Reply 3 on: Yesterday
Wow, this really help

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