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ejbrack01 ejbrack01
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Posts: 366
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6 years ago
Let the random variable Z follow a standard normal distribution, and let z1 be a possible value of Z that is unknown but identifiable by position and area. Find z1 if the area to the right of z1 is 0.8413.
 
  A) 1.00
  B) -1.00
  C) 0.00
  D) 0.41

Q. 2

The value of the test statistic for determining if there is a difference in the population variances for preservatives A and B is equal to:
 
  A) 0.784
  B) 1.625
  C) 1.275
  D) 1.129

Q. 3

The probability distribution contains all the information about the probability properties of a random variable.
 
  Indicate whether the statement is true or false

Q. 4

What should the null and alternative hypotheses be for 2?
 
  A) H0 : 2 = 0, H1 : 2 > 0
  B) H0 : 2  0, H1 : 2 = 0
  C) H0 : 2 > 0, H1 : 2 < 0
  D) H0 : 2 = 0, H1 : 2  0

Q. 5

Relative frequency probability is the number of events in the population that meets conditions multiplied by the total number in the population.
 
  Indicate whether the statement is true or false
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luckylucky
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#1
Posts: 203
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6 years ago
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ejbrack01 Author
wrote...
#2
6 years ago
Wow! Thanks you for this correct set of answers, wasn't expecting it...
wrote...
#3
6 years ago
My pleasure!
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