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 97 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
Wow, this really help

xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

The Dingo was the first placental mammal introduced to Australia, around 4000 years ago The Dingo was the first placental mammal introduced to Australia, around 4000 years ago
Phonological and Whole-Word Reading Phonological and Whole-Word Reading
During the Pullman strike in Chicago, workers protesting wage cuts did $340,000 in property damage, During the Pullman strike in Chicago, workers protesting wage cuts did $340,000 in property damage,
Young children’s play engages motor skills as well as cognitive skills (such as communicating, ... Young children’s play engages motor skills as well as cognitive skills (such as communicating, ...
Development of Morality in Young Children Development of Morality in Young Children
Mutagenicity of aflatoxin B1 determined by the Ames test Mutagenicity of aflatoxin B1 determined by the Ames test
Video: Secretin (inhibiting gastric acid secretion), Cholecystokinin (fat digestion) & Cholecystokinin

For a complete list of videos, visit our video library