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Author Question: The variance of a sample or a population cannot be _____. a. negative b. calculated c. zero d. ... (Read 81 times)

ts19998

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  • Posts: 531
on: Jun 24, 2018
The variance of a sample or a population cannot be _____.
 a. negative
  b. calculated
  c. zero
  d. less than1

Question 2

A random sample of 64 students at a university showed an average age of 25 years and a sample standard deviation of 2 years. The 98 confidence interval for the true average age of all students in the university is
 a. 20.5 to 29.5.
   b. 24.4 to 25.6.
   c. 23.0 to 27.0.
   d. 20.0 to 30.0.


sultansheikh

  • Sr. Member
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  • Posts: 335
Reply #1 on: Jun 24, 2018
Answer to Question 1

a

Answer to Question 2

b


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