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Author Question: The standard deviation of the population of adult female spine lengths is .92 inches. A random ... (Read 91 times)

biggirl4568

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on: Jun 20, 2018
The standard deviation of the population of adult female spine lengths is .92 inches. A random sample of 40 women was selected and the mean spine length was found to be 26 inches.
 
  a. Calculate the standard error of the mean.
  b. Use the z test to determine whether this sample could be representative of a
   the general population of women whose mean spine length is known to be 24
   inches.

Question 2

The regression of Y on X allows for
 
  a. predictions of Y, given information on X
  b. predictions of X, given information on X, Y, and Z
  c. predictions of both X and Y, given information on a third variable
  d. none of these


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morganmarie791

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Reply #1 on: Jun 20, 2018
Answer to Question 1

a SEm=.15

Answer to Question 2

a


biggirl4568

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Reply #2 on: Jun 20, 2018
Thank you!


morganmarie791

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Reply #3 on: Jun 20, 2018
Happy to help


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