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_____________?

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. Analysis of Variance (ANOVA) is a test for equally of______________?

   A. Variances
   B. Proportions
   C. Only two parameters
   D. Means

3. Two event are said to be equally likely is ______________?

   A. As any other
   B. both event occurs
   C. One occurs
   D. not both occurs

4. In which approach to probability the outcomes are equally likely to occur ?

   A. Classical Probability
   B. Subjective Probability
   C. Relative Frequency
   D. Independent

5. The Mann-Whitney U test is preferred to a t-test when____________?

   A. Sample are dependent
   B. The assumption of normality is not met
   C. Sample sizes are small
   D. Data are paired

6. A test is said to be most powerful test of size α, if_______________?

   A. Among all other test of size α or less it has the largest power
   B. Among all other test of size α or greater it has the largest 1 – α
   C. Among all other test of size α or greater it has the smallest power
   D. Among all other test of size α or greater it has the largest β

7. 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

8. ______________is based on all observations of data?

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

9. 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

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

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