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Author Question: A sample size of 5 provides a sample mean of 9.6. If the population variance is known to be 5 and ... (Read 178 times)

BRWH

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on: Jun 24, 2018
A sample size of 5 provides a sample mean of 9.6. If the population variance is known to be 5 and the population distribution is assumed to be normal, the lower limit for a 90 confidence interval is 7.96.
 
  Indicate whether the statement is true or false

Question 2

Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. So, 27 of the possible Z values are smaller than ________.
 
  Fill in the blank(s) with correct word


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ciecieme

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

TRUE

Answer to Question 2

-0.61


BRWH

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Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

nguyenhoanhat

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Reply 3 on: Yesterday
Gracias!

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