In normal distribution β1 = 0 and β2 is equal to _____________?

Related Mcqs:

1. If the sampled population has a normal distribution, when is the sampling distribution of the sample mean X also a normal distribution ?

   A. Only when the sample size is at least 100.
   B. Only when the sample size is smaller than 30
   C. Always
   D. Only when the sample size is at least 30.

2. Normal distribution is a probability distribution of _____ random variable?

   A. Continuous
   B. Constant
   C. Discrete
   D. Normal

3. Normal distribution is the distribution of _______________?

   A. Discrete r.v.
   B. Continuous r.v.
   C. Qualitative variable
   D. Quantitative variable

4. Normal distribution is _____ distribution?

   A. Symmetrical
   B. non-symmetrical
   C. + vely skewed
   D. -vely skewed

5. If in a sampling distribution of X the sample size is 25, what assumption must hold for the sampling distribution of X to be normal ?

   A. Population distribution is normal
   B. μ1 = μx
   C. Population distribution is uniform
   D. σx = σx /√n

6. condition for applying Central Limit Theorem (CLT) which approximate the sampling distribution of the mean with a normal distribution is ?

   A. n > 30
   B. N(1 – p) > 5
   C. 2 n 5
   E. N < 30

7. __________ of the distribution which is measured relative to the distribution known as Normal?

   A. Skewed
   B. Flatness
   C. Normal
   D. Moment

8. In normal distribution Q.D. ( quartile deviation)is equal to________?

   A. σ
   B. 0.7979 σ
   C. 0.6745 σ
   D. None of these

9. The median of normal distribution corresponds to the value of Z equal to_________________?

   A. 0.5
   B. 1
   C. µ
   D. 0

10. Area of normal distribution total is equal to _______?

    A. Two
    B. One
    C. Four
    D. Three