ANIMAL PHYSIOLOGY
CHEMICAL SIGNALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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____ there is NO significant difference between the observed and expected data.
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____ there IS a significant difference between the observed and expected data.
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Detailed explanation-1: -The null hypothesis states that the treatment has no effect. In general the null hypothesis states that there is no change, no difference, no effect, and otherwise no relationship between the independent and dependent variables. Because we are hypothesizing that nothing is happening, it is called the null hypothesis.
Detailed explanation-2: -For this reason, when conducting a test of significance, a null hypothesis is used. The term null is used because this hypothesis assumes that there is no difference between the two means or that the recorded difference is not significant. The notation that is typically used for the null hypothesis is H0.
Detailed explanation-3: -If there is less than a 5% chance of a result as extreme as the sample result if the null hypothesis were true, then the null hypothesis is rejected. When this happens, the result is said to be statistically significant .
Detailed explanation-4: -The null hypothesis is generally denoted as H0. It states the exact opposite of what an investigator or an experimenter predicts or expects. It basically defines the statement which states that there is no exact or actual relationship between the variables.