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Statistics Mcqs

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_____________?

Statistical Inference Mcqs, Statistics Mcqs /
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

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_____________? Read More »

Statistical Inference Mcqs, Statistics Mcqs

Which of the following is a true statement for comparing the t distribution with standard normal ?

Statistical Inference Mcqs, Statistics Mcqs /
Which of the following is a true statement for comparing the t distribution with standard normal ?

A. Greater the degree of freedom, the more the t-distribution resembles the standard normal distribution
B. The Normal Curve is symmetrical whereas the t-distribution are slightly skewed.
C. The proportion of area beyond a specific value of “t” is less than the proportion of normal curve
D. Non of these

Which of the following is a true statement for comparing the t distribution with standard normal ? Read More »

Statistical Inference Mcqs, Statistics Mcqs

Which of the following is an assumption underlying the use of the t-distribution ?

Statistical Inference Mcqs, Statistics Mcqs /
Which of the following is an assumption underlying the use of the t-distribution ?

A. The sample are drawn from a normally distributed population.
B. The variance of the population is known
C. All above
D. s (sample standard deviation) is an unbiased estimate of the population variance.

Which of the following is an assumption underlying the use of the t-distribution ? Read More »

Statistical Inference Mcqs, Statistics Mcqs

Herbicide A has been used for years in order to kill a particular type of weed. An experiment is to be conducted in order to see whether a new herbicide, Herbicide B, is more effective than Herbicide A. Herbicide A will continue to be used unless there is sufficient evidence that Herbicide B is more effective. The alternative hypothesis in this problem is_____________?

Statistical Inference Mcqs, Statistics Mcqs /
Herbicide A has been used for years in order to kill a particular type of weed. An experiment is to be conducted in order to see whether a new herbicide, Herbicide B, is more effective than Herbicide A. Herbicide A will continue to be used unless there is sufficient evidence that Herbicide B is more effective. The alternative hypothesis in this problem is_____________?

A. Herbicide A is more effective than Herbicide B
B. Herbicide A is not more effective than Herbicide B
C. Herbicide B is more effective than Herbicide A
D. Herbicide B is not more effective than Herbicide A

Herbicide A has been used for years in order to kill a particular type of weed. An experiment is to be conducted in order to see whether a new herbicide, Herbicide B, is more effective than Herbicide A. Herbicide A will continue to be used unless there is sufficient evidence that Herbicide B is more effective. The alternative hypothesis in this problem is_____________? Read More »

Statistical Inference Mcqs, Statistics Mcqs