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Author Question: A random sample of 15 crates have a mean weight of 165.2 pounds and a standard deviation of 13.5 ... (Read 128 times)

Chelseaamend

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on: Jul 24, 2018
A random sample of 15 crates have a mean weight of 165.2 pounds and a standard deviation of 13.5 pounds. Construct a 95 confidence interval for the population standard deviation .
 
  Assume the population is normally distributed, and round to the nearest hundredth when necessary.
  A) (97.69, 453.3 ) B) (10.38, 19.71 ) C) (9.88, 21.29 ) D) (2.69, 5.79 )

Question 2

Suppose the candidate pool for two appointed positions includes 6 women and 9 men. All candidates were told that the positions were randomly filled. Find the probability that two men are selected to fill the appointed positions.
 
  A) .143 B) .160 C) .360 D) .343


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Koolkid240

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

C

Answer to Question 2

D


Chelseaamend

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Reply 2 on: Jul 24, 2018
Excellent

steff9894

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Reply 3 on: Yesterday
Wow, this really help

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