Which hypothesis tell us weather test is one tail or 2 tail?

Related Mcqs:

1. If right tail is longer than left tail then distribution is called _________________?

   A. Negatively Skewed
   B. Positively Skewed
   C. All of above
   D. None of these

2. The data collected by NADRA to issue National Identity cards are______________?

   A. Official data
   B. un-official data
   C. Primary data
   D. Secondary data

3. ___________ data are collected for the first time.

   A. Research
   B. Statistical
   C. Secondary
   D. Primary

4. Data regarding opinions of consumers about some product obtained through lady workers are ____________?

   A. Cheapest method
   B. Existing Sources
   C. Primary
   D. Secondary

5. If the standard deviation of a population is 9, the population variance is_____________?

   A. 9
   B. 3
   C. 21
   D. 81

6. The mean deviation of the values, 18, 12, 15 is____________?

   A. 6
   B. Zero
   C. 3
   D. 2

7. If a and b are two constants, then Var(a+bX) is_______________?

   A. a±bVar(X)
   B. Var(a)±Var(X)
   C. ±bVar(X)
   D. b2Var(X)
   E. (a±b)Var(X)

8. Var(2X+3) is________________?

   A. 5 Var(X)
   B. 4 Var(X)
   C. 4 Var(X)+3
   D. 5 Var(X)+3

9. The Harmonic Mean of any two numbers is________________?

   A. a+b2
   B. 2aba+b
   C. ab−−√
   D. a+b

10. Which sampling technique is appropriate when there is homogeneity in population?

    A. Simple random sampling
    B. Stratified sampling
    C. Cluster sampling
    D. Systematic sampling

    Submitted by: Nimra Shaheen