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Author Question: Selecting a random sample from each identifiable subgroup within a population is called: a. ... (Read 67 times)

bobbie

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on: Jun 24, 2018
Selecting a random sample from each identifiable subgroup within a population is called:
 a. demographic sampling
  b. systematic sampling
  c. stratified sampling
  d. cluster sampling
  e. none of these choices

Question 2

In order to estimate with 90 confidence a particular value of Y for a given value of X in a simple linear regression problem, a random sample of 20 observations is taken. The appropriate t-value that would be used is 1.734.
 a. True
  b. False
   Indicate whether the statement is true or false


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dlook33

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

c

Answer to Question 2

TRUE


bobbie

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Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

ghepp

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Reply 3 on: Yesterday
Excellent

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