Question
Inference recap (8.1 to 11.2) In each of the following settings, say which inference procedure from Chapter 8, 9, 10, or 11 you would use. Be specific. For example, you might say “two-sample z test for the difference between two proportions.” You do not need to carry out any procedures.33(a) What is the average voter turnout during an election? A random sample of 38 cities was asked to report the percent of registered voters who actually voted in the most recent election.(b) Are blondes more lik
Inference recap (8.1 to 11.2) In each of the following settings, say which inference procedure from Chapter 8, 9, 10, or 11 you would use. Be specific. For example, you might say “two-sample z test for the difference between two proportions.” You do not need to carry out any procedures.33 (a) What is the average voter turnout during an election? A random sample of 38 cities was asked to report the percent of registered voters who actually voted in the most recent election. (b) Are blondes more likely to have a boyfriend than the rest of the single world? Independent random samples of 300 blondes and 300 nonblondes were asked whether they have a boyfriend.

Answers
Inference recap (8.1 to 11.2) In each of the following settings, say which inference procedure from Chapter 8, 9, 10, or 11 you would use. Be specific. For example, you might say “two-sample z test for the difference between two proportions.” You do not need to carry out any procedures.33
(a) What is the average voter turnout during an election? A random sample of 38 cities was asked to report the percent of registered voters who actually voted in the most recent election.
(b) Are blondes more likely to have a boyfriend than the rest of the single world? Independent random samples of 300 blondes and 300 nonblondes were asked whether they have a boyfriend.
Coach in mine. The normal requirements required that the number off failures, uh, in the number off successes input champions is greater than 10. So we know that there are eight successes in the second sample. Eso the crew is a control who so the normal requirements is not satisfying.
Purple number 60 first, we can say that if every value in one sample has a corresponding value in the other sample, then use ah purty procedure else we real news and the to sample a team procedure for a question. A. We will choose a paired 80 procedures because each some pick has ah literal mate in the other in the other sample. So ah, for question being, we will choose a two sample T procedures because each each sample contained different subjects for 60 c, um, we can use to sample T procedures because each sample also contained a different different subjects.
Question about asked us to consider the difference between random sampling and reigned in the Simon. And then we're gonna talk about the inferences that can made a CE a result of their brains Now plays what random assignment it was. A random sampling is the initial part of study deciding what you decide who is going to be included in this. You're gonna take your large population, and from that it's looked who's gonna be involved in your study. So, in a problem when you first heard off, there's gonna be a whole mix. It connects people who could be involved in your study, but then, depending on what you're searching for, um, maybe you only slept one specific group. So what you're inferring is that whatever you are selecting your study there is between the populations a hole or presenting just that small population. So in this case, we're saying off the total population, our sample is only going to, um, to inner infringes on the blue dot populations. It's no. One. We talked about random assignment. We're saying one peep decided who's gonna be in the study, who was going to be considered case. And he was gonna be considered a control consult for including footwork, inferring then that's what we have is two distinct populations and that one population is different than the other. So we're, um, inferring that they don't have forward ever were studying. They don't have that in common from there. In fact, two distinct populations.
Broke them one or four. The most important condition for using a significance test. In that assemble, data originates from random from them sample, so the answer will be a. So the data come from a well designed random sample or a randomized except.