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Author Question: Under what conditions are you allowed to use the normal distribution to approximate the binomial ... (Read 103 times)

2125004343

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on: Aug 1, 2018
Under what conditions are you allowed to use the normal distribution to approximate the binomial distribution? Under what conditions might you want to use the normal distribution to approximate the binomial as opposed to using the binomial
 
  probability formula, a table of binomial probabilities, or a computer?

Question 2

Which of the following is an appropriate null hypothesis for a chi-square test of independence?
 
  a. The row and column variables are independent in the population.
  b. The means of populations A and B are equal.
  c. The mean of the population is equal to the mean of the sample.
  d. The distribution of scores for population A is identical to the distribution of scoresfor population B.


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chereeb

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Reply #1 on: Aug 1, 2018
Answer to Question 1

One may use the normal distribution to approximate the binomial distribution, provided that both np  5 and nq  5. You would choose to approximate by the normal distribution if a computer and software were not available, if the table did not contain the required values of n and p, or if the computations could not be easily and expediently done with the binomial probability formula.

Answer to Question 2

A


2125004343

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Reply 2 on: Aug 1, 2018
YES! Correct, THANKS for helping me on my review

T4T

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

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