Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. researchers often use z-tests to compare their sam

Researchers often use z-tests to compare their samples to known population norms. The Graded Naming Test...

60.1K

Verified Solution

Question

Statistics

Researchers often use z-tests to compare their samples to knownpopulation norms. The Graded Naming Test (GNT) asks respondents toname objects in a set of 30 black-and-white drawings. The testoften used to detect brain damage, starts with easy words likekangaroo and gets progressively more difficult, ending with wordslike sextant. The GNT population norm for adults in England is20.4. Roberts (2003) wondered whether a sample of Canadian adultshad different scores than adults in England. If they weredifferent, the English norms would not be valid for use in Canada.The mean for 30 Canadian adults was 17.5. For the purposes of thisexercise, assume that the standard deviation of the adults inEngland is 3.2.

When we conduct a one-tailed test instead of atwo-tailed test, there are small changes in steps 2 and 4 ofhypothesis testing. (Note: For this example, assume that those frompopulations other than the one on which it was normed will scorelower, on average. That is, hypothesize that the Canadians willhave a lower mean.) Conduct steps 2, 4, and 6 of hypothesis testingfor a one-tailed test.

please help me by actually writing step by step what you aredoing so I can understand clearer. do not ONLY use equations toreply please

Answer & Explanation Solved by verified expert
4.2 Ratings (749 Votes)
ConsiderX GNT score for Canadiansn number of Canadians selected 30Xbar Sample mean GNT score for Canadians 175From the informationmu Population norm for adults in England 204sigma Standard deviation of adults in England 32We have to test the hypothesis    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Young softball batters are often instructed to “choke-up on the bat” by their coach. In terms...

Physics
Q

Three equal positive point charges of magnitude Q = 10.00μ C are located at three corners...

Physics
Q

Pro-Weave manufactures stadium blankets by passing the products through a weaving department and a sewing department....

Accounting
Q

Balding and color blindness are genetic mutation that occur more frequently in males than females...

Biology
Q

A thin semi circular conducting ring of radius R is falling with its plane vertical...

Physics
Q

ball falls from height h After 1 second another ball falls freely from a point...

Physics
Q

S ft nswer Check and the volume of the composite figure to the nearest whole...

Geometry
Q

The following information is related to the pension plan of Long, Inc. for 2015. $1,245,000....

Accounting
Q

On December 31,2021, Grouper Group borrowed HK $3,780,000 at 12% payable annually to finance the...

Accounting
Q

Puget Sound Divers is a company that provides diving services such as underwater ship repairs...

Accounting
Q

question 9a connect: Required information [The following information applies to the questions displayed below.] Rawlco...

Accounting
Q

An object to which costs are assigned is called Select one: A. a cost pool....

Accounting