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Why is alternative hypothesis not accepted?
After you perform a hypothesis test, there are only two possible outcomes. When your p-value is less than or equal to your significance level, you reject the null hypothesis. The data favors the alternative hypothesis. When your p-value is greater than your significance level, you fail to reject the null hypothesis.
Does rejecting the null hypothesis mean the alternative hypothesis is true?
Null hypothesis testing is a formal approach to deciding whether a statistical relationship in a sample reflects a real relationship in the population or is just due to chance. If the sample result would be unlikely if the null hypothesis were true, then it is rejected in favour of the alternative hypothesis.
What does it mean to reject or accept your hypothesis?
But it remains true in that the acceptance of a null hypothesis is a weak decision whereas rejection is strong evidence of the sample against the null hypothesis. When the null hypothesis is rejected it means the sample has done some statistical work, but when the null hypothesis is accepted it means the sample is almost silent.
When should you accept a null hypothesis?
If the sample does not support the null hypothesis, we reject it on the probability basis and accept the alternative hypothesis. If the sample does not oppose the hypothesis, the hypothesis is accepted.
Do we reject or accept the null hypothesis?
Rejecting or failing to reject the null hypothesis. Alternatively, if the significance level is above the cut-off value, we fail to reject the null hypothesis and cannot accept the alternative hypothesis. You should note that you cannot accept the null hypothesis, but only find evidence against it.
What does ‘fail to reject’ means in a hypothesis test?
All it means is that the null hypothesis has not been disproven-hence the term “failure to reject.” A “failure to reject” a hypothesis should not be confused with acceptance. In mathematics, negations are typically formed by simply placing the word “not” in the correct place.