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Author Question: Which of the characteristics below distinguishes the t statistic from the z statistic? a. the ... (Read 31 times)

Engineer

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on: Jun 19, 2018
Which of the characteristics below distinguishes the t statistic from the z statistic?
 
  a. the proportion of area beyond a particular positive t value is equal to the proportion of area below the corresponding negative t
  b. the z distribution has a mean of zero while the t distribution does not
  c. In the t distribution the area under the curve beyond a value of 1.96 is greater than that of the normal curve
  d. all of these

Question 2

In a t test, when the size of the sample is increased, the confidence interval _________.
 
  a. increases c. stays the same
  b. decreases d. changes shape


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Awesome

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

C

Answer to Question 2

B


Engineer

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Reply 2 on: Jun 19, 2018
Excellent

marict

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Reply 3 on: Yesterday
Wow, this really help

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