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Author Question: Before drawing any conclusions about the relationship between two variables shown in a ... (Read 218 times)

naturalchemist

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on: Jun 24, 2018
Before drawing any conclusions about the relationship between two variables shown in a crosstabulation, you should _____.
 a. investigate whether any hidden variables could affect the conclusions
  b. construct a scatter diagram and find the trendline
  c. develop a relative frequency distribution
  d. construct an ogive for each of the variables

Question 2

Michael is running for president. The proportion of voters who favor Michael is 0.8 . A simple random sample of 100 voters is taken.
 a. What are the expected value, standard deviation, and shape of the sampling distribution of ?
  b. What is the probability that the number of voters in the sample who will not favor Michael will be between 26 and 30?
  c. What is the probability that the number of voters in the sample who will not favor Michael will be more than 16?


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allisonblackmore

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

a

Answer to Question 2

a. 0.8; 0.04; normal
b. 0.0606
c. 0.8413


naturalchemist

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Reply #2 on: Jun 24, 2018
Thank you :)


allisonblackmore

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Reply #3 on: Jun 24, 2018
Happy to help you


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