A. Consistent random variableB. Discrete random variableC. Continuous random variableD. Discrete random variable




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Video Transcript

in difficulty 19. We have established on the median number students, our class from a sample off 3 schools, friend randomly selected indigenous a huge school district. At the 0.10 level that significance, we're going to inspect whether these adequate evidence the the mean number of students per class differs amongst schools. For this reason you have three schools stood for by M s, one M s two and also chemistry, three center school classes. And, uh, we're walking to step stopped by sit the night. However this is i beg your pardon is brand-new one placed into equates to your three. Is the all there median number turn off students? My class are equal. The alternative I placed this is is the at the very least one I average is various from the office due to the fact that running would certainly be derived from castle on, not leases that Aryan systems done below in exams so an excellent to deter and also press datanalisis a nova solitary factor. Then you press OK, man, because that the deter. We choose the selection with the 3 columns and I'm certain that it's team by columns on that the Alfa is 0.10 doing think after 0.10 and output me press OK so not These room the results for the nexus the variants, and also we interested carry in the crucial value. So because that the critical value, the newest high levels of flexibility will be, as well on the monitor levels if you don't have been nine and also they never ever lost far-reaching 0.1. And so the an important value because that that set off worths is 3.0 six. Now. The test violet is the f the worth of their calculated calculated Barrick new off. And also to get a calculation value, F will have actually to acquire the the caution turn off the many square for variable in the environment-friendly scarf or era, i m sorry in this case is 3.6 3.61 nine case to really not to make the decision whether to reject the night. But this is all to feel to refuse a nine purposes, and also in our case, we should compare the an important value on the test value. And as you have the right to see, the crucial value is smaller than the test body, which method that the test badly will certainly be in ~ the an essential regions and hence we make the decision to reject been ~ above hypotheses and also you didn't rejecting. This leads us to do the conclusion that there is not these enough evidence to support the claim that at least one median is different from the others. For this reason this is to say that in that context that the mean variety of students are class differs among schools. So these proof to show that in number off cause