a hypothesis must be testable to be scientifically valid. being testable means a. some observations could prove the hypothesis incorrect b. the hypothesis is proven wrong c. the opposite of hypothesis is tested
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Answer:
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Explanation:
ans: 1 It probably means that you must 'prove' your theory by some practical experiments if you want it to be scientifically valid.
a. Typically, the hypothesis is based on previous findings, such as how certain chemicals react. The science experiment is designed to disprove or support the initial hypothesis. When the findings do not align with the hypothesis, the experiment is not a failure.
b . Upon analysis of the results, a hypothesis can be rejected or modified, but it can never be proven to be correct 100 percent of the time. For example, relativity has been tested many times, so it is generally accepted as true, but there could be an instance, which has not been encountered, where it is not true.
c . The null hypothesis, H0 is the commonly accepted fact; it is the opposite of the alternate hypothesis. Researchers work to reject, nullify or disprove the null hypothesis. Researchers come up with an alternate hypothesis, one that they think explains a phenomenon, and then work to reject the null hypothesis.
the answer is (b).
Explanation: