# Why is it necessary to have a research hypothesis in d presence of research question?

The simple answer is to test d significance

Hypothesis are tentative assumptions or intelligent guess to d solution of an identified problem. It is therefore necessary to be tested to help d researcher make decision on whether to reject or accept d null

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It is necessary to have a research hypothesis in addition to a research question because a hypothesis provides a specific statement or prediction about the expected outcome of the research. While a research question helps to guide the inquiry and identify the topic of interest, a hypothesis offers a more focused and testable explanation or solution to the research question. It allows researchers to formulate clear expectations and predictions based on existing knowledge or theories, which can then be systematically tested through empirical research methods. In this way, a hypothesis serves as a crucial element in the scientific method by providing direction, structure, and a basis for evaluating the validity of research findings.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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- How do you find the margin of error for a poll, assuming that 95% confidence and pi= 0.4 for n = 450?
- What is a 90% confidence interval for the population mean birth weight based on the data?

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