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Author Question: A random sample of 16 statistics examinations from a large population was taken. The average score ... (Read 94 times)

BRWH

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on: Jun 24, 2018
A random sample of 16 statistics examinations from a large population was taken. The average score in the sample was 78.6 with a variance of 64 . We are interested in determining whether the average grade of the population is significantly more than 75 . Assume the distribution of the population of grades is normal. At 95 confidence, it can be concluded that the average grade of the population
 a. is not significantly greater than 75
  b. is significantly greater than 75
  c. is not significantly greater than 78.6
  d. is significantly greater than 78.6

Question 2

A random sample of 16 statistics examinations from a large population was taken. The average score in the sample was 78.6 with a variance of 64 . We are interested in determining whether the average grade of the population is significantly more than 75 . Assume the distribution of the population of grades is normal. The p-value is between
 a. .005 to .01
  b. .01 to .025
  c. .025 to .05
  d. .05 to 0.1


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Jevvish

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

B

Answer to Question 2

C


BRWH

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Reply 2 on: Jun 24, 2018
Wow, this really help

Zebsrer

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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