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?
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