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Can a hypothesis ever be disproved by a single experiment?
Yes, if the experiment does not produce the same results time and time again
Can a hypothesis be disproved by a single experiment.?
Yes. A hypothesis describes what we expect to happen in an experiment. If we do the experiment and something different happens, then our hypothesis is "falsified", or demonstrated to be false. In that case, we'll need to reconsider our hypothesis to determine how it was wrong. We can revise our hypothesis and then conduct a different experiment to test it. It's easy to demonstrate that a hypothesis is incorrect, but it is impossible to prove that it is true.
Is it sufficient to do a single experiment to test a hypothesis Why or why not?
Whether or not you write down an hypothesis, if you conduct an experiment, you naturally have a hypothesis since you are trying to find the answer to something and have some sort of expectations.
What is the difference between a scientific theory and fact?
Well, a fact is like a theorem :) This means it is a proven thing. It is factual. Like Pi = 3.14... it's a theorem (or fact) because it is mathematically proven. A theory on the other hand is something which hasn't been proven... It is what someone thinks or their thoughts on an issue, E.g.: my theory is that there is life after death (for example) It is a theory because no one can deny that it's wrong, but it also cant be proven correct. :) hope this has helped you x
A single run of an experiment?
Trial
Can a hypothesis ever be disproved by a single experiment?
Yes, if the experiment does not produce the same results time and time again
Can a hypothesis be disproved by a single experiment.?
Yes. A hypothesis describes what we expect to happen in an experiment. If we do the experiment and something different happens, then our hypothesis is "falsified", or demonstrated to be false. In that case, we'll need to reconsider our hypothesis to determine how it was wrong. We can revise our hypothesis and then conduct a different experiment to test it. It's easy to demonstrate that a hypothesis is incorrect, but it is impossible to prove that it is true.
Is it sufficient to do a single experiment to test a hypothesis Why or why not?
Whether or not you write down an hypothesis, if you conduct an experiment, you naturally have a hypothesis since you are trying to find the answer to something and have some sort of expectations.
Why is collaboration of scientist is necessary for the process of scientific study?
The most important reason is if a single scientist forms a hypothesis and it is proved by his or her experiment it is still only a hypothesis. Other scientists need to repeat the experiment in every way conceivable to either prove or disprove the hypothesis. Only after the hypothesis has stood up to such scrutiny may it become a theory recognized by the scientific community. Another reason is that some research is simply too daunting and complex for a single person to complete.
State five null hypothesis which are one tailed?
One-tailed null hypotheses are directional. A null hypothesis should be the opposite of what you hope to show. The terms "one-tailed" and "directional" can be considered synonymous. They basically mean the hypothesis has a single way of being disproved. 1. Drug "A" will not cause an increase in height. (can only be disproved if there is an increases in height) 2. There are a greater number of bicycles than there are cars used for transportation in the city. (only disproved if cars are more numerous) 3. More people eat pizza than hot dogs. (only disproved if more people eat hot dogs) 4. More people wear raincoats instead of using umbrellas (only disproved if more people use umbrella) 5. Person "A" has siblings. (disproved only if person does not have siblings) Two tailed null hypotheses are non-directional. These hypotheses basically have more than one possible outcome that will disprove them. 1. Drug "A" will not cause a change in height. (increase or decrease in height disproves hypothesis) 2. Bicycles are the most common form of transportation in the city. (disproved more people use cars, walk, subway, buses, etc.) 3. More people eat pizza than any other food. (disproved if hot dogs, burgers, pasta, steaks are more popular) 4. Most people wear raincoats to keep dry from the rain (disproved if more people use umbrellas, ponchos, etc.) 5. Person "A" has 5 siblings. (disproved if person has 0-4 siblings or 6-infinity siblings)
What is a single conjecture that can be tested?
Hypothesis
Is a single conjecture that can be tested?
Hypothesis
What is A single conjecture that can be tested called?
It is a hypothesis.
What defines the analysis steps in the scientific methods?
The analysis step is the 5th step in the scientific method. It involves determining what the results of the experiment show and deciding on the next actions to take. The predictions of the hypothesis are compared to those of the null hypothesis, to determine which is better able to explain the data. In cases where an experiment is repeated many times, a statistical analysis such as a chi-squared test may be required. If the evidence has falsified the hypothesis, a new hypothesis is required; if the experiment supports the hypothesis but the evidence is not strong enough for high confidence, other predictions from the hypothesis must be tested. Once a hypothesis is strongly supported by evidence, a new question can be asked to provide further insight on the same topic. Evidence from other scientists and experience are frequently incorporated at any stage in the process. Depending on the complexity of the experiment, many iterations may be required to gather sufficient evidence to answer a question with confidence, or to build up many answers to highly specific questions in order to answer a single broader question.
What is the difference between a scientific theory and fact?
Well, a fact is like a theorem :) This means it is a proven thing. It is factual. Like Pi = 3.14... it's a theorem (or fact) because it is mathematically proven. A theory on the other hand is something which hasn't been proven... It is what someone thinks or their thoughts on an issue, E.g.: my theory is that there is life after death (for example) It is a theory because no one can deny that it's wrong, but it also cant be proven correct. :) hope this has helped you x
A single run of an experiment?
Trial
State the hypothesis of continental drift?
That there was once a super continent called Pangaea huge land mass was broken into continents that drifted apart. The theory also suggests that the earth is made up of 7 gigantic shifting slabs of the earth's crust. This disproved the more popular (at the time) "raisin" theorem
