A hypothesis test starts from the assumption that...?
362053
A hypothesis test starts from the assumption that the null hypothesis is correct (c) and then you test whether the data is likely under this assumption.  If the data refutes the null hypothesis to the chosen significance level than you are said to have proven the alternative hypothesis to be likely.\n\n\nIs this for highschool homework?  If you need help I have a degree in statistics and can help you understand this stuff but if you just want someone to do your homework you should re-think this.  Trying to get to the end result without learning the process won't get you anywhere in life.  Even if you don't use this in your future career it is still worth learning.
938158
Get a test and prove it.
443660
Somebody made a hypothesis that says there is a relationship between thing A and thing B. A relationship does not say that A caused B or that B caused A, just that knowing about the state of A tells you something about the state of B. \n\nFor example, I could hypothesize that there is a relationship between people's stress levels and their body temperatures, but not be able to say that running a fever is the result of or the cause of stress.
115489
B.\n\nAll of the rest are false.
681523
Yes.  It can never be proven to be true, but it can be fasified.  If you perform an experiment and it works, it means it works under those conditions.  You keep performing experiments.  If they keep succeeding, the hypothesis is less likely to be falsified, however it still could be.
206151
A null hypothesis is a theory someone has come up with that they know is wrong. They do it so that when it is proved wrong, they present another hypothesis that they believe to be the correct one, and because of the fact that the first one was proved wrong, more people will believe this second one.
268650
It is the assumption that nothing happened; that the treatment had no effect.\n\nFor example, suppose you were testing a headache relif.  You give on group sugar pills and the other group the medicine.  The null hypothesis is that the results for the sugar pill group were the same as the results for the medicine group (same number of headaches).  The alternate hypothesis is that the medicine group had a better result (fewer headaches).
697195
theoretically that is believed to be true
45437
The null hypothesis is a statement used for better definition of the problem that is to be addressed. Thus, instead of saying "I want to know what X is like", which is rather vague and could be approached from many different aspects, you state something like "The red little balls in X are sensory organs". Then you can decide what kind of procedure you're going to prove or disprove that those red little balls are indeed sensory organs. Either way, at the end of your research the null hypothesis must be accepted or rejected.
745178
What is known comes from experiment.
204729
ok. here is one "HYPOTHESIS OF SOUND"!\n\nLet me know if you want another one! I got plenty.\n\nlol
321329
1) Idintify the problem of interest\n2) Carefully read the literature to see what has already been done in the area\n3) Modify your question based upon the literature review\n4) Clarify a hypothesis into a series of simple questions\n5) Devise and conduct a series of easy pilot experiments to determine if the hypothesis is likely true.\n6) Plan a stepwise series of experiments to answer the question\n7) Analyze the data statistically, write the manuscript
579180
if you're talking about in statistics, a convenience sample would be asking the first 100 people who walk past you on the street the same question. it tends to create biased results.
747645
A hypothesis is what you think will happen or what you are trying to prove.  There is no explanation of what you did in lab, but I am guessing that different people or groups of people did different things to the magnesium and the teacher wants you to see the different outcomes from the same substance in different situations.
7918
That would be a "random variable". So I guess other words of the puzzle might be wrong.
108416
none if they are false
738733
A hypothesis is an educated guess used by scientists to guide their experiments.\n     Example:  If we see the sun moving from east to west, then the sun must be revolving around the earth. (Just a guess, not necessarily true)\n\nA theory is a statement that has been tested many times, and most experiments seem to support it.\n     Example:  The earth rotating on its axis allows humans on the earth to see the sun moving, when it really isn't.\n\nA law is a statement that has been tested many times, but unlike a theory, it has been proven and supported by experimental evidence.  There are no exceptions to it.\n     Example:  Careful measurements of the sun and the earth and all other planets PROVE that planets revolve around the sun, and not the other way around.