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Calypso1992 Calypso1992
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6 years ago
According to Experian, the average FICO credit score for residents of El Paso, Texas, is 710.
 
  Suppose the standard deviation for this population is 46.1. A random sample of 60 El Paso residents has been selected. The standard error of the mean for this sample is ________.
  A) 1.96
  B) 3.28
  C) 5.95
  D) 8.44

Q. 2

A ________ component is movement in a time series that results from upward or downward swings in the U.S. or world economy over a period of several years.
 
  A) cyclical
  B) seasonal
  C) random
  D) trend

Q. 3

The sign test is a nonparametric procedure that assigns a plus sign or a minus sign to each observation in a sample.
 
  Indicate whether the statement is true or false

Q. 4

According to R.L. Polk & Co, Americans held onto their new vehicles for an average of 71.4 months.
 
  A random sample of 60 adults who recently sold their new vehicle was selected. Assuming the standard deviation for this population is 15.8 months, the standard error for this sample is ________.
  A) 1.30
  B) 2.04
  C) 3.56
  D) 5.92
Textbook 
Business Statistics

Business Statistics


Edition: 2nd
Author:
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vangsue16vangsue16
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Calypso1992 Author
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6 years ago
My teacher is very rude and likes to speed his way through a lesson without letting the class ask questions. Thank you for helping me. You're a life saver Slight Smile
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4 years ago
thank you
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thank you
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thank you
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Thank You! Online classes right now are really hard.
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3 years ago
Thank you.
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