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Author Question: A finite population correction factor is needed in computing the standard deviation of the sampling ... (Read 275 times)

jlmhmf

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on: Jun 24, 2018
A finite population correction factor is needed in computing the standard deviation of the sampling distribution of sample means _____.
 a. whenever the population is infinite
  b. whenever the sample size is more than 5 of the population size
  c. whenever the sample size is less than 5 of the population size
  d. The correction factor is not necessary if the population has a normal distribution.

Question 2

A production process produces 90 non-defective parts. A sample of 10 parts from the production process is selected.
 a. Define the random variable in words for this experiment.
  b. What is the probability that the sample will contain 7 non-defective parts?
  c. What is the probability that the sample will contain at least 4 defective parts?
  d. What is the probability that the sample will contain less than 5 non-defective parts?
  e. What is the probability that the sample will contain no defective parts?


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kristenb95

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

b

Answer to Question 2

a. x = the number of non-defective parts out of 10 or y = the number of defective parts out of 10
b. .0574
c. .0128
d. .0001
e. .3487


jlmhmf

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Reply 2 on: Jun 24, 2018
:D TYSM

bbburns21

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

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