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Author Question: If the null hypothesis is P 0.20 and the alternate hypothesis is P < 0.20, then a two-tail test ... (Read 28 times)

natalie2426

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on: Jun 24, 2018
If the null hypothesis is P  0.20 and the alternate hypothesis is P < 0.20, then a two-tail test is being conducted.
 
  Indicate whether the statement is true or false

Question 2

An automobile company with 3500 employees needs to take a simple random sample in order to estimate the employee population's average satisfaction level on a scale of 0-100.
 
  From previous experience, it is estimated that the population standard deviation is approximately 8.0. A 95  confidence interval for the population mean must extend 3.0 on each side of the sample mean. How many employees need to be sampled to achieve this objective?A) 28
  B) 24
  C) 42
  D) 32


Dunkey

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

FALSE

Answer to Question 2

A


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