Please define each of the following terms and provide a hypothetical example for each: hypothesis testing, null

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Please define each of the following terms and provide a hypothetical example for each: hypothesis testing, null and alternative hypothesis, non-directional and directional hypothesis, type I error in testing hypothesis, type II error in testing hypothesis, probability of type I error (ɑ), probability of type II error (ß), power of the test and its significance, the critical value(s) in a test, p value (significance level).

● What is the difference between testing hypothesis on a population and testing hypothesis when comparing two populations? Provide hypothetical examples.

● What are the possible outcomes in testing a hypothesis? What are the determinant factors in deciding the critical value(s) in testing a hypothesis?

● When the z statistic is appropriate to be used in testing a hypothesis? When the t- statistic is appropriate to be used in testing a hypothesis? For each case, include the underlying assumptions, and the test statistic, for both testings a hypothesis on the mean of the population, and testing hypothesis in comparing the value of the mean in a population with the value of the mean in another population.

●What is the criterion for rejecting the null hypothesis for both non-directional and directional tests?

●How do you find the p-value in each case? Do not forget to discuss cases that involve proportion(s).

● When the chi-squared statistic is used in testing hypotheses? Include underlying assumptions and the test statistic for testing hypotheses on a single population. ●What is the criterion for rejecting the null hypothesis for both non-directional and directional tests? ●How do you find the p-value in each case?

2 Answer questions highlighted in yellow and submit in a separate word document - APA style 7th edition with peer-reviewed journals ( at least 4) . DQ2 has two parts --- PART A are attachments ---- a.1 and a.2 ( a.2 if the reference for question 13) Problems # 7,8,13,14,15 -- need peer-reviewed references at least 4 ; PART B are attachments --- b,c,d - Problems # 2,3,6,8,9 ( highlighted in yellow)