This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A random sample of 41 children (all 5 years of age) was selected and given the Reading test of the ... (Read 39 times)

mwit1967

  • Hero Member
  • *****
  • Posts: 501
on: Jun 20, 2018
A random sample of 41 children (all 5 years of age) was selected and given the Reading test of the WRAT (Wide Range Achievement Test). The sample mean was 20.57 and the estimated standard error of the mean was 1.98.
 
  Test whether the sample could be representative of a population whose mean was 23.52.
 
 
 What will be an ideal response?

Question 2

A random sample of 20 fourth-grade students was selected and given the math sub-test of the Peabody Individual Achievement Test (PIAT). The sample mean was found to be 38.07 with an estimated standard error of the mean of 2.11.
 
  The population mean was known to be 42.50. Test whether the sample could be representative of the population.
 
 
 What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kmb352

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jun 20, 2018
Answer to Question 1

t= -1.490 Fail to reject

Answer to Question 2

t=-2.100 Reject Ho p<.05


mwit1967

  • Member
  • Posts: 501
Reply 2 on: Jun 20, 2018
Great answer, keep it coming :)

aruss1303

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Cyanide works by making the human body unable to use oxygen.

A comparison of selected species of bacteria and archaea. A comparison of selected species of bacteria and archaea.
Children with Down syndrome have a small head, short, thick neck, flattened face, and a distinctive ... Children with Down syndrome have a small head, short, thick neck, flattened face, and a distinctive ...
Sample Teaching Plan for Hypertension Cont. Sample Teaching Plan for Hypertension Cont.
The age-related increase in spirituality is different for two cohorts born seven years apart. The ... The age-related increase in spirituality is different for two cohorts born seven years apart. The ...
Prevalence of drug use in the United States. Figures are based on a survey of people 12 years of age ... Prevalence of drug use in the United States. Figures are based on a survey of people 12 years of age ...
Mantoux tuberculin skin test. Mantoux tuberculin skin test.
Video: The primary factors that affect circulation - MABP, CO and SVR

For a complete list of videos, visit our video library