One Tailed  and Two  Tailed Tests

The critical  region ( or the region of rejection)  which is generally 5 per cent is kept  on both  sides of the normal  distribution in a two  tailed test. It means that 2.5  per cent  of the critical  is on the extreme left of the normal curve and 2.5 percent on the extreme right. The middle 95 % is the acceptance  region in a single tail  test the 5  per cent  area   would  be either  on the  extreme  left  of the normal  curve or on the extreme right. The  remaining  95 percent  area would  be the  acceptance region.

Two tailed test is applied  when the  null  hypothesis  is that  mean  weight of the  undergraduate  male  students is 120 pounds  and the  alternate  hypothesis  is that it is not 120 pounds. In such  a situation the  actual  value  of the population  mean or maybe more  than  120 pounds or less than  120 pounds. In such  situation a two  tailed  is appropriate.

Posted Date: 2/26/2013 5:22:15 AM | Location : United States

Ask an Expert

Related Discussions:- One tailed and two tailed tests -hypothesis testing , Assignment Help, Ask Question on One tailed and two tailed tests -hypothesis testing , Get Answer, Expert's Help, One tailed and two tailed tests -hypothesis testing Discussions

Write discussion on One tailed and two tailed tests -hypothesis testing
Your posts are moderated

Write your message here..

Related Questions

Transportation and assignment problems, wha wha

Operation research, A PAPER MILL PRODUCES TWO GRADES OF PAPER VIZ., X AND Y... A PAPER MILL PRODUCES TWO GRADES OF PAPER VIZ., X AND Y. BECAUSE OF RAW MATERIAL RESTRICTIONS, IT CANNOT PRODUCE MORE THAN 400 TONS OF GRADE X PAPER AND 300 TONS OF GRADE Y PAPER I

Operation research, methodology of operation research methodology of operation research

Cgj, application&techniques application&techniques

Research and development - information generation process, Research and Dev... Research and Development: All intellectual activities consciously pursued and systematically completed generate useful information. Research (also Research and Development) is

LPP, A paper mill produces two grades of paper viz., X and Y. Because of r... A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i

Observation and data collection - research phases, Observation and Data Col... Observation and Data Collection for Better Understanding of the Problem: Many times actual observations by trained observers at the scene of operation may be difficult and da

Research abstracts, Research Abstracts Abstracts of researches comp... Research Abstracts Abstracts of researches completed are available from the followings publications: a. ICSSR Research Abstracts: contain abstracts of research projects

Optimization, Find a minimum cost spanning arborescence rooted, Find a minimum cost spanning arborescence rooted,

Assignment, Q2. Six Operators are to be assigned to five jobs with the cost... Q2. Six Operators are to be assigned to five jobs with the cost of assignment in Rs. given in the matrix below. Determine the optimal assignment. Which operator will have no assign