Question

discuss why hypothesis testing is important in research.

Answer #1

Hypothesis considered as most important part in reserach. The main function of hypothesis is to suggest new ideas and functions. It formulates clear and specific goals. Hypothesis testing is done to help determine if the variation between groups of data is due to variation or if it is the result of sample variation.

There are two types of hypothesis which can be written as:

*Ho =* Null Hypothesis

Statement of ‘no effect’ or ‘no difference’.

*Ha =* Alternative Hypothesis

Statement/claim assumed to be true and we are trying to prove it to be true.

Therefore, hypothesis testing is very important in research.

Discuss in not more than 100 words the purposes of hypothesis
testing in quantitative research. Illustrate your answers with at
least one example in the construction industry.

Locate an example of a research study that uses hypothesis
testing. Explain whether the study describes its hypothesis testing
procedure explicitly or implicitly, based on the explanations in
the Methodology section. Finally, discuss what this statistical
technique allowed the researchers to accomplish and/or conclude in
the study.

Discuss the role of level of significance and level of
confidence interval in testing of research hypotheses. At what
level can we accept or reject a tested hypothesis is each case.

briefly list the steps of hypothesis testing. In your opinion,
which is the most important step? Why?

In one paragraph discuss why doing more diabetes research is so
important in a country like Qatar. Please be thorough

Discuss why you think psychophysics and the memory research of
Hermann von Ebbinghaus are so important when considering the
development of psychology as a scientific discipline.

What is the aim of hypothesis testing? What does hypothesis
testing achieve that could not be otherwise achieved?
How does hypothesis testing help support the fields that employ
the scientific method? Besides hypothesis testing, are there
alternative ways to validate the research findings?

After studying the materials presented in chapter 8,
(Hypothesis Testing), discuss at least two different situations you
would use hypothesis testing in your area of study, (nursing), and
why. Formulate a null and alternative hypothesis for each
situation. What test statistics will you use based on the situation
you stated and why. Be sure to present a brief background of each
situation.

Discuss how the concept of statistical independence underlies
statistical hypothesis testing in general. Based on statistical
analysis, are we justified in asserting that two variables are
statistically dependent? Why or why not?

Discuss how the concept of statistical independence underlies
statistical hypothesis testing in general. Based on statistical
analysis, are we justified in asserting that two variables are
statistically dependent? Why or why not? Explain why researchers
typically focus on statistical independence rather than statistical
dependence.

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