Which of the following is not based on all the observations ?

Related Mcqs:

1. Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be______________?

   A. 50
   B. 70
   C. 50/20
   D. 50-20 = 30
   E. 50

2. Which of the following is not based on all the observations ?

   A. Arithmetic Mean
   B. Geometric Mean
   C. Harmonic Mean
   D. Weighted Mean
   E. Mode

3. Which of the following is not based upon all the observations _________?

   A. A.M.
   B. G.M.
   C. H.M.
   D. Mode

4. Which of the measures given here are based on every item of the series (uses all observations)?

   A: Range
   B: Standard Deviation
   C: Quartile Deviation
   D: All of them

5. ______________is based on all observations of data?

   A. Median
   B. Mode
   C. Mean
   D. None of these

6. Which one of the following measurement does not divide a set of observations into equal parts ?

   A. Quartiles
   B. Standard Deviations
   C. Percentiles
   D. Deciles
   E. Median

7. A sample of 24 observations is taken from a population that has 150 elements. The sampling distribution of is___________?

   A. Approximately normal because is always approximately normally distributed
   B. Approximately normal because the sample size is large in comparsion to the population size
   C. Approximately normal because of the central limit theorem
   D. Normal if the population is normally distributed

8. A sample of 92 observations is taken from an infinite population. The sampling distribution of is approximately ?

   A. Normal because is always approximately normally distributed
   B. Normal because the sample size is small in comparison to the population size
   C. Normal because of the central limit theorem
   D. None of these alternatives is correct.

9. Three brands of coffee are rated for tasted on a scale of 1 to 10. Six persons are asked to rate each brand so that there is a total of 18 observations.The appropriate test to tasted equally good is_____________?

   A. One way analysis of variance (ANOVA)
   B. Spearman Rank difference
   C. Wilcoxon Rank-Sum test
   D. Kruskal-Wallis test

10. The sum of deviations of observations is zero, when deviations are taken from __________?

    A. Mean
    B. Median
    C. Mode
    D. None of these