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Hello students, the question is first we have to answer which statement signifies the null hypothesis.
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Null hypothesis.
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We have given option a, a good study habit that result in a good grades.
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Option b, a good study habit that increases the student's grade.
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A good study habit affects the grade of the students.
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And option d, that is a good study habit does not affect the grades of the students.
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So the null hypothesis signifies the statement d.
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That is a good study habit, it does not affect the grades of the student.
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Next we have to answer which of the following is not an element in a research proposal.
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We have given option experimentation, hypothesis, problem and rationally.
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So the experimentation if we see this is not an element of research proposal.
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Next which are the four essential elements of a research proposal.
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Four elements of research proposal we have to answer.
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We have given options and out of this option the correct answer is option a, that is introduction, rationally, methodology and conclusion.
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Next we have to answer which of the following are excellent source of or excellent sources for research topics.
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We have given options, option a, myths, option b, dreams, option c, personal experience and option d, that is replication of the prior research...