RESEARCH METHODOLOGY

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REPORTING AND THESIS WRITING

NULL HYPOTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A null hypothesis statement can be “the rate of plant growth is not affected by sunlight.” It can be tested by measuring the growth of plants in the presence of sunlight and comparing this with the growth of plants in the absence of sunlight. In a research report, the results of a hypothesis test include the t-value is 1.94 and thc critical value is 0.85.
A
The null hypothesis can be rejected and the difference is not significant
B
The null hypothesis can be rejected and the difference is significant
C
The null hypothesis cannot be rejected and the difference is not significant
D
The null hypothesis cannot be rejected and the difference significant
Explanation: 

Detailed explanation-1: -Usually, the null hypothesis is a statement of ‘no effect’ or ‘no difference’.” It is often symbolized as H0. The statement that is being tested against the null hypothesis is the alternative hypothesis. Symbols include H1 and Ha.

Detailed explanation-2: -Examples of the Null Hypothesis : Tomato plants exhibit a higher rate of growth when planted in compost rather than in soil. : Tomato plants do not exhibit a higher rate of growth when planted in compost rather than soil. : Tomato plants show no difference in growth rates when planted in compost rather than soil.

Detailed explanation-3: -Here is a simple example: A school principal claims that students in her school score an average of seven out of 10 in exams. The null hypothesis is that the population mean is 7.0.

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