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Author Question: There are two values for tcrit when H1 is directional. Indicate whether the statement is true or ... (Read 62 times)

jc611

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on: Jun 19, 2018
There are two values for tcrit when H1 is directional.
 
  Indicate whether the statement is true or false

Question 2

In general, the z test is more powerful than the t test because _________.
 
  a. with the z test, the sample mean is closer to the population mean than with the t test
  b. with the t test we lose a degree of freedom
  c. the standard deviation of the sample raw scores is larger with the t test
  d. with the z test, we know , whereas with the t test, we must estimate it.


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Pariscourtney

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Reply #1 on: Jun 19, 2018
Answer to Question 1

F

Answer to Question 2

D


jc611

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Reply 2 on: Jun 19, 2018
Great answer, keep it coming :)

rachel

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Reply 3 on: Yesterday
Excellent

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