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Author Question: To find a confidence interval for the difference between the means of independent samples, when the ... (Read 117 times)

saraeharris

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  • Posts: 546
on: Jun 24, 2018
To find a confidence interval for the difference between the means of independent samples, when the variances are unknown but assumed equal, the sample sizes of the two groups must be the same.
 
  Indicate whether the statement is true or false

Question 2

Which of the following is not a characteristic of the normal distribution?
 
  A) Symmetric
  B) Mean = median = mode
  C) Bell-shaped
  D) Equal probabilities at all values of x


Andromeda18

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  • Posts: 336
Reply #1 on: Jun 24, 2018
Answer to Question 1

FALSE

Answer to Question 2

D


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