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Author Question: Which of the following symbols represents the standard deviation of a population? a. 2 b. c. ... (Read 85 times)

deesands

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on: Jun 24, 2018
Which of the following symbols represents the standard deviation of a population?
 a.  2
  b.
  c.
  d. x

Question 2

A random sample of 64 SAT scores of students applying for merit scholarships showed an average of 1400 with a standard deviation of 240 . The t value needed to develop the 95 confidence interval for the population mean SAT score is
 a. 1.96.
   b. 1.998.
   c. 1.645.
   d. 1.28.


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cloud

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

b

Answer to Question 2

b


deesands

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Reply 2 on: Jun 24, 2018
Excellent

tranoy

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Reply 3 on: Yesterday
Gracias!

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