A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
In a survey conducted with 600 participants across the United States, 450 were found to have studied science in college. If we were to predict the population proportion with a 99.7% confidence, what would the confidence interval be?
69.7% to 80.3%
73.23% to 76.76%
71.46% to 78.53%
73.5% to 76.5%
anonymous
 one year ago
In a survey conducted with 600 participants across the United States, 450 were found to have studied science in college. If we were to predict the population proportion with a 99.7% confidence, what would the confidence interval be? 69.7% to 80.3% 73.23% to 76.76% 71.46% to 78.53% 73.5% to 76.5%

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I have the steps to this problem but I went wrong somewhere so I don't understand it

dan815
 one year ago
Best ResponseYou've already chosen the best response.1okay, so first 450/600 = ?

dan815
 one year ago
Best ResponseYou've already chosen the best response.1okay now for a 99.7 %, u have to find the Z score for that

dan815
 one year ago
Best ResponseYou've already chosen the best response.1the next step is to find out what the standard deviation of thing should be

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohhh see, that was the step I was missing, the standard deviation. Except idk how to do it

dan815
 one year ago
Best ResponseYou've already chosen the best response.1oh um also we know the center is definately 0.75 right

dan815
 one year ago
Best ResponseYou've already chosen the best response.1or 75%, some of the choices u are given arent centered around that, so they can eliminated rightway

dan815
 one year ago
Best ResponseYou've already chosen the best response.1nvm, all them are centered around 75% cant elimnate any argh

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh okay so what do I do now

dan815
 one year ago
Best ResponseYou've already chosen the best response.1C is definitely wrong 71.46% to 78.53% as it should say 71.46% to 78.54%

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well I wrote all the answers correctly so idk, I just checked

dan815
 one year ago
Best ResponseYou've already chosen the best response.1its probably just bad rounding

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So it's definitely not C?

dan815
 one year ago
Best ResponseYou've already chosen the best response.1What is the Z score u foundÉ

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the formula for z score is \[z= \frac{ X\mu }{ \sigma }\] right...

dan815
 one year ago
Best ResponseYou've already chosen the best response.1yes thats another one,. but we cant use that right now

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh... then what do we use

dan815
 one year ago
Best ResponseYou've already chosen the best response.1i just mean we have to find Z score, for the 99.7 %

dan815
 one year ago
Best ResponseYou've already chosen the best response.1you have to look at that table and chart

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay how do I do that

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0http://www.statisticshowto.com/tables/tdistributiontable/ this one right

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0cause this is where I was stuck, I wasn't sure what numbers or whatever to look at on the chart

dan815
 one year ago
Best ResponseYou've already chosen the best response.1click on the 2 tail one

dan815
 one year ago
Best ResponseYou've already chosen the best response.1https://www.youtube.com/watch?v=_x6jrH33Og you can watch this, i know it says typically not used for sample size greater than 30.. but the standard deviation is unknown so, what else can we do

dan815
 one year ago
Best ResponseYou've already chosen the best response.1no clue it looks like info is missing, what can we do with sample deviation is unknown and the pop deviation is unknown @hartnn

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0here is the entire question

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok I just need help cause I need to answer it soon

dan815
 one year ago
Best ResponseYou've already chosen the best response.1@ganeshie8 is the question missing info??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so do you know anything..

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2I am eating at the moment but I found this https://answers.yahoo.com/question/index?qid=20140522184044AAlIk3W

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm on my school computer so yahoo is blocked, could you tell me what it says

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2how about this http://gyazo.com/d103059ce0cd9eadfd631e125a3f3bc9

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no it's still blocked..
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.