Author Question: A random sample of 61 fifth-grade students was selected and given the Stanford-Binet IQ test. The ... (Read 112 times)

berenicecastro

  • Hero Member
  • *****
  • Posts: 581
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

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

t=-1.235 Fail to reject

Answer to Question 2

t=.960, Fail to reject



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

For a complete list of videos, visit our video library