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Author Question: A random sample of 49 statistics examinations was taken. The average score, in the sample, was 84 ... (Read 127 times)

serike

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on: Jun 24, 2018
A random sample of 49 statistics examinations was taken. The average score, in the sample, was 84 with a variance of 12.25 . The 95 confidence interval for the average examination score of the population of the examinations is
 a. 80.48 to 87.52.
   b. 77.40 to 86.60.
   c. 82.99 to 85.01.
   d. 68.00 to 100.00.

Question 2

Statistical methods that generally require very few, if any, assumptions about the population distribution are known as
 a. parametric methods.
  b. nonparametric methods.
  c. free methods.
  d. distribution-fixed methods.


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verrinzo

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

c

Answer to Question 2

b


serike

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Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

robbielu01

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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