METHODS OF DATA ANALYSIS
PARAMETRIC AND NON PARAMETRIC TESTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Twenty-five children are chosen randomly from a school playground. Their heightsare measured when they first come into school the next morning, and again just before they go home that same evening. What statistical test could be usedto test the hypothesis that their morning heights are no different from theirevening heights?
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Independent T Test
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Paired T Test
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Regression
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Z test
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Explanation:
Detailed explanation-1: -Parametric tests are used only where a normal distribution is assumed. The most widely used tests are the t-test (paired or unpaired), ANOVA (one-way non-repeated, repeated; two-way, three-way), linear regression and Pearson rank correlation.
Detailed explanation-2: -Correct option: b. The test does not require assumptions about population means.
Detailed explanation-3: -Unlike parametric tests that can work only with continuous data, nonparametric tests can be applied to other data types such as ordinal or nominal data. For such types of variables, the nonparametric tests are the only appropriate solution.
There is 1 question to complete.