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Author Question: A random sample of 61 fifth-grade students was selected and given the Stanford-Binet IQ test. The ... (Read 129 times)

berenicecastro

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on: Jun 20, 2018
A random sample of 61 fifth-grade students was selected and given the Stanford-Binet IQ test. The mean score for the sample was 97, with an estimated standard error of the mean of 2.43.
 
  Estimate whether the sample mean could be representative of a population whose mean is 100.
 
 
 What will be an ideal response?

Question 2

A random sample of 30 infants (age 12 months) was selected and given a Motoric Development test. The mean score for the sample was at the 13.20 month level. The
  estimated standard error of the mean was 1.25.
 
  Estimate whether the mean test age of the sample could be representative of a population whose mean test age is 12 months.
 
 
 What will be an ideal response?


nikmaaacs

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

t=-1.235 Fail to reject

Answer to Question 2

t=.960, Fail to reject


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