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Hypothesis Testing - Essay Example

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Hypothesis testing entails a statistical inference technique that allows a researcher to retain or reject their proposition regarding a subject matter. A subject matter in such a case may be an event happening within their environment or statistical applications within their…
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Hypothesis Testing

Download file to see previous pages... These projections are based on the average marks for the whole class in which those parents get the insights of their students’ performance before, the results are out. Therefore, the null and alternative hypotheses may be stated as;
From these two propositions, the first one (H0) is the null hypothesis while the H1 is the alternative hypothesis. Such an idea is based on the idea of probability and the rejecting the null hypothesis may be influenced by different factors (John, 2007). If the students do not revise well and cover the expected chapters, their performance will be adversely affected and the chances are high that they will not attain the mean mark of 50%. Therefore, under such circumstances the null hypothesis will be rejected and conclude that the mean mark was less than 50%.
However, Type I error may occur whereby the H0 is rejected while the students had performed to the average mark. Such an idea may be caused by computational errors or using a poor approach (John, 2007). On the other hand, we could accept the H0 and conclude that the mean mark was on average of 50% when on reality the mean mark was less than 50%. Such an aspect allows the tutor to report a false result (John, ...Download file to see next pagesRead More
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