<p>I know that they say to avoid writing purely the calculator steps, but to what degree? For example, is it perfectly fine to just use ncdf(a, b, u, o), or would we have to like show a picture or something like that. And for bcdf and those things, do we actually have to calculate it out with all the factorial things? Our class used purely calculator like all year, and if it turns out that we need to do everything by hand, then I'm screwed. help please</p>
<p>You should still know how to do it by hand. Luckily, everything is listed on your formula sheet.</p>
<p>not really… like the gpdf is an example of whats not on the formula sheet. Do you always have to write the conditions (or do the “inference toolbox” from the yates book, which our prof makes us do) when doing inference problems or does it not really matter in the grading?</p>
<p>You need to write basic formula substitutions and if it’s totally calculator live inversenorm or something, a picture helps. But not everything can be done by hand and they understand that ( I would look at some of the older questions if I were you)</p>
<p>For inference (at least according to my review book) they want an intro, conditions, mechanics, and conclusion for full credit. So yes, you should show that the conditions are met. </p>
<p>And like the poster above said, not everything can be shown to be done by hand, but binomial and geometric distributions can definitely be done by hand.</p>
<p>arggggh we used gcdf and bcdf all year for those things… I’m just glad we don’t have to know how to calculate power/type II error</p>