Stat Sampling Distributions Homework Problem?
Hello! I have a homework problem I've been working on that I can only solve half way. Just can't figure out how to do the rest! Please help me understand. PROBLEM: According to a spring 2009 poll of more than 2,200 college students across 40 colleges and Universities, 83 percent of students reported feeling stressed on a daily basis. Assume that the true proportion of students who feel stressed on a daily basis is 83%. 1. Find two z scores (upper and lower) that contain the central 95% of the standard normal distribution. 2. Suppose you take a survey of 120 college students. Between what two values will the sample proportion of students in the survey who feel stressed be between 95% of the time? ANSWER: I found the answer to part 1: -1.96 and 1.96 How do I figure out part 2?
Statistics Homework question?
Take total number of seats (265) and multiply by percent the airline figures won't show (5% or .05 for our formula) 265x.05 =13.25 Answer to A) 13 people since we can't have .25 of a person For Part B, if we suppose 5% of the 275 do not show up, that means 262 people will show up. Since there are 265 seats on this flight, the 262 people will all have a spot on the plane. This of course is assuming that all things from part A of the question carry over to part B.
How do I recode R-studio so I can find BMI?
I hope that by “Recoding R-Studio-script”, you mean adding the new column to the existing dataset.Here is the example which you can replicate for your dataset.I created a dataset with height in metres and weight in kg. I added a new column BMI to my table ‘tab’ with initial values as ‘NA’. I re-populated it with the BMIs based on weight and height in each row.weight <- c(50,60,64,95)height <- c(1.6,1.8,2,2.5)tab <- data.frame(height,weight)tab$BMI <- NAtab$BMI <- (tab$weight/tab$height)/tab$heightInitial table data:Table data after adding BMI column:Please excuse me if your question did not expect this answer and drop me a note what exactly was expected.
Are home schooled kids anti social?
Does she turn into a terrified hermit over the summer break, or does she hold her sh*t together just fine? You must go to a really nice school, because the only social environment MY schools prepared us for was prison. (Yeah, really. We had car thieves in middle school and by high school we had student murder his girlfriend over the lunch break. And her mother. And their toddler child. Awesome. The PERFECT social environment.)
How should one start learning R Programming from scratch?
I believe what you are looking for is a ‘Learning Path’. It will guide you on your journey from beginner to expert in R programming. Plenty of learning paths are available online, but here is one that will help you get started and provides plenty of additional resources.LeaRning Path on R - Step by Step Guide to Learn Data Science on R