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Author Question: A manufacturer of power tools claims that the mean amount of time required to assemble their ... (Read 43 times)

Bob-Dole

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on: Jun 24, 2018
A manufacturer of power tools claims that the mean amount of time required to assemble their top-of-the-line table saw is 80 minutes with a standard deviation of 40 minutes. Suppose a random sample of 64 purchasers of this table saw is taken. So, the middle 95 of the sample means based on sample sizes of 64 will be between ________ and ________.
 
  Fill in the blank(s) with correct word

Question 2

The amount of tea leaves in a can from a particular production line is normally distributed with  = 110 grams and  = 25 grams. What is the probability that a randomly selected can will contain at least 100 grams of tea leaves?
 
  What will be an ideal response?


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DHRUVSHAH

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

70.2 and 89.8 minutes

Answer to Question 2

0.6554


Bob-Dole

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Reply 2 on: Jun 24, 2018
Gracias!

DylanD1323

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Reply 3 on: Yesterday
Excellent

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