STATISTICS

T-Test : To test the significance between the difference of sample mean and population mean. This test is used when sample size is less than 30

 Z-Test: A statistical test used to determine whether two population means are different when the variances are known and the sample size is large. The test statistic is assumed to have a normal distribution and nuisance parameters such as standard deviation should be known in order for an accurate z-test to be performed.

 Chi square test: Test the differences between the actual and expected frequencies in case of two attributes

 Queuing theory -- A.K.Erlang

Comments

Post a Comment

Popular posts from this blog

HRM Multiple choice questions 1

HUMAN RESOURCE MANAGEMENT:MULTIPLE CHOICE QUESTIONS 1. The motion of men implicit in the classical theory lends to generate a kind of employee psyche, which may be described as: (a) Self-development oriented (b) Aggressive (c) Submissive (d) Deficiency-oriented Ans. (c) 2. Who described the phenomenon that each employee engaged in a staff function creates work for his colleagues: (a) W. Wilson (b) Parkinson (c) D. Waldo (d) Creep Ans. (b) 3. Theory is the formulation of universal principles of organization: (a) Classical Tory (b) Human Relation Theory (c) Bureaucratic Theory (d) Scientific Management Ans. (a) 4. “Grapevine” is a term used in relation to: (a) Formal communication (b) Informal communication (c) Both (a) and (b) (d) This term is not used in relation to communication Ans. (b) 5. The authoritarian leadership style goes with: (a) Theory X (b) Theory Y (c) Theory Z (d) None of these Ans. (a) 6. Which of the following will tend to raise the market rate of interest in the long...
Read more

UGC NET Management Dec 2011

1. Consider a demand curve which takes the form of a straight-line cutting both axes. Elasticity at the mid-point of the line would be ---A (A) 0 (B) 1.0 (C) 1.5 (D) 2.0 2. Price taker firms (A) Advertise to increase the demand for their product (B) Do not advertise, because most advertising is wasteful. (C) Do not advertise because they can sell as much as they want at the current price. (D) Who advertise will get more profits than those who do not. 3. OPEC is an example of the type of producer’s organisation known as a (A) Marketing Board (B) Producer’s Co-operative (C) Trust (D) Cartel 4. Match the following : ----D List – I List – II I. Responsiveness 1. Income of demand to elasticity change in price of demand II. Responsiveness 2. Price of demand to elasticity change in tastes of demand III. Responsiveness 3. Cross of demand to elasticity change in of demand income IV. Responsiveness 4. Taste of demand to elasticity change in price of demand of related...
Read more

Question Bank 11

1. OPEC is an example of the type of producer’s organization known as a: (a) Marketing Board (b) Producer’s Cooperative (c) Trust (d) Cartel Ans. (d) 2. TQM’s major emphasis is on (a) Product quality (b) Company profitability (c) Customer delight (d) Employee training Ans. (a) 3. Assertion (A): Effective motivation is moderated by organizational complexity and conflicts. Reason (R): An Individual’s motives may be complex and conflicting. Codes: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not a correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. Ans. (d) 4. Match the following: List-I List-II A Classical 1. Fact-orientation B Human Relations 2. Environment C Behavioural 3. Structure D Systems 4. Informal organization 5. Incentives to work Codes: A B C D...
Read more