And in this test, like every hypothesis test, we need a significance level.

在这个测试中，就像每个假设测试一样，我们需要一个显着性水平。

Deductive logical thought, meanwhile, uses an existing theory to inform the hypothesis you test.

同时，演绎逻辑思维使用现有理论来为您检验的假设提供信息。

So like we do with all of our hypothesis tests, let's just assume the null.

因此，就像我们对所有假设检验所做的那样，让我们​​假设为零。

So let's do a little hypothesis test here.

因此，让我们在这里做一些假设检验。

Now, to do any type of hypothesis test, we have to decide on a level of significance.

现在，要进行任何类型的假设检验，我们必须确定显着性水平。

So to do our hypothesis test, let's just establish our null hypothesis and our alternative hypothesis.

因此，为了进行我们的假设检验，让我们建立零假设和备择假设。

Or just do a straight up hypothesis test to see is there a difference?

或者只是直接进行假设检验以查看是否存在差异？

So let's say the significance level that we care about, for our hypothesis test, is 10%.

因此，对于我们的假设检验，假设我们关心的显着性水平是 10%。

And we're going to do the hypothesis test with a significance level of 5%.

我们将以 5% 的显着性水平进行假设检验。

In the next video, we'll actually do a hypothesis test using this same data.

在下一个视频中，我们实际上将使用相同的数据进行假设检验。

Now, one thing I forgot to mention, with any hypothesis test, we're going to need some type of significance level.

现在，我忘了提一件事，对于任何假设检验，我们都需要某种显着性水平。

So if we look at it-- let me just re-draw it with our new hypothesis test.

因此，如果我们看一下——让我用我们的新假设检验重新绘制它。

You could have done a similar type of hypothesis test with the same experiment where you only had a one-tailed test.

您可以在同一实验中进行类似类型的假设检验，而您只进行了单尾检验。

First of all, the researcher has to be completely open-minded — he or she hasn't thought up a hypothesis to be tested, as is the case in other types of research.

首先，研究人员必须绝对虚心，他们不能像在其他类型的研究中那样事先想出一个假设，然后测试它的真实性。

So to figure out whether I want to accept or reject his hypothesis right here, I'm going to do a little bit of a hypothesis test.

所以为了弄清楚我是想在这里接受还是拒绝他的假设，我将做一些假设检验。

In this video, I actually want to do a hypothesis test, really to test if this data makes us believe that the low-fat diet actually does anything at all.

在这段视频中， 我实际上想做一个假设检验，真正检验这些数据是否让我们相信低脂饮食真的有任何作用。

When we produce thin section slides, We are choosing specimens based on a question that we're asking or a hypothesis that we're testing And the next bone on the chopping block is going to maybe fill in a piece of the puzzle.

当我们制作薄切片幻灯片时，我们是根据我们提出的问题或我们正在测试的假设来选择样本， 而砧板上的下一块骨头可能会填补一块拼图。