Go Back   Honda-Tech > Community Forums > General Discussion and Debate
Sign in using an external account
Register Forgot Password?
Search


Welcome to Honda-Tech!
Welcome to Honda-Tech.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Honda-Tech community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread
Old 06-17-2007, 03:21 PM   #1
SilentHill
Honda-Tech Member
Garage is empty, add now
 
SilentHill's Avatar
 
Join Date: Oct 2004
Posts: 268
iTrader Rating: (0)
Default What is the Z* for a 98% confidence interval

doing some stat homework, and i need to know the Z* score given: a 98% confidence interval. I know 99% confidence is = 2.576 and 95% is 1.960 but i dont know 98% or how to find it. Can someone help out?
__________________
Quote:
Originally Posted by BoredNStroked
I heard it will still get a girl pregnant.....
SilentHill is offline   Reply With Quote
Old 06-17-2007, 03:23 PM   #2
.BigSexy
most hood white kid
Garage is empty, add now
 
Join Date: Jul 2004
Location: Vegas...Formerly Tennessee
Posts: 9,537
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (SilentHill)

Quote:
Originally Posted by SilentHill
doing some stat homework, and i need to know the Z* score given: a 98% confidence interval. I know 99% confidence is = 2.576 and 95% is 1.960 but i dont know 98% or how to find it. Can someone help out?
is it not in the back of your book?

it was in the back of my book
.BigSexy is offline   Reply With Quote
Old 06-17-2007, 03:25 PM   #3
.MilanoRex
Honda-Tech Member
Garage is empty, add now
 
.MilanoRex's Avatar
 
Join Date: Jan 2002
Location: Redondo Beach, CA, USA
Posts: 614
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (.BigSexy)

Quote:
Originally Posted by .BigSexy

is it not in the back of your book?

it was in the back of my book
Yeah they always have the charts in the back
__________________
"Lifes a garden, DIG IT!"
'92 Civic Hatchcrap
'97 4Runner Limited
'03 CBR 600RR
'07 Scion tC
.MilanoRex is offline   Reply With Quote
Old 06-17-2007, 03:25 PM   #4
Endless STi
Junior Member
Garage is empty, add now
 
Endless STi's Avatar
 
Join Date: Mar 2004
Location: Chicago, IL, USA
Posts: 827
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (SilentHill)

2.326?
__________________
90 Integra GS - Sold
05 Black STI w/ Gold Rims. http://images.honda-tech.com/set1/smile/emthup.gif

Want To Buy:
1998+ Acura Integra Green Front Bumper - http://www.honda-tech.com/zerothread?id=1481834

Vouches:
DxBurnoutKing, wanna b R, plzhitvtec, 1fastdc5, StreetFameGSR, slim9300, J's 94 Accord, crx_racer86

AKA - Bootleg R
Endless STi is offline   Reply With Quote
Old 06-17-2007, 03:25 PM   #5
SilentHill
Honda-Tech Member
Garage is empty, add now
 
SilentHill's Avatar
 
Join Date: Oct 2004
Posts: 268
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (.BigSexy)

no i have a Z table but its just for Z scores not Z* for confidence intervals and i cant figure out how to calculate it on my own. Its obviously some thing like 1-x blah blah math bullshit = the score i need but i dont remember what to do.
__________________
Quote:
Originally Posted by BoredNStroked
I heard it will still get a girl pregnant.....
SilentHill is offline   Reply With Quote
Old 06-17-2007, 03:27 PM   #6
SilentHill
Honda-Tech Member
Garage is empty, add now
 
SilentHill's Avatar
 
Join Date: Oct 2004
Posts: 268
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (Endless STi)

Quote:
Originally Posted by Endless STi
2.326?
im gonna try that number and see what i get, how did u get that number anyways??
__________________
Quote:
Originally Posted by BoredNStroked
I heard it will still get a girl pregnant.....
SilentHill is offline   Reply With Quote
Old 06-17-2007, 03:27 PM   #7
Endless STi
Junior Member
Garage is empty, add now
 
Endless STi's Avatar
 
Join Date: Mar 2004
Location: Chicago, IL, USA
Posts: 827
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (SilentHill)

I just pulled through my old charts for Stats and it was there.
__________________
90 Integra GS - Sold
05 Black STI w/ Gold Rims. http://images.honda-tech.com/set1/smile/emthup.gif

Want To Buy:
1998+ Acura Integra Green Front Bumper - http://www.honda-tech.com/zerothread?id=1481834

Vouches:
DxBurnoutKing, wanna b R, plzhitvtec, 1fastdc5, StreetFameGSR, slim9300, J's 94 Accord, crx_racer86

AKA - Bootleg R
Endless STi is offline   Reply With Quote
Old 06-17-2007, 03:28 PM   #8
.BigSexy
most hood white kid
Garage is empty, add now
 
Join Date: Jul 2004
Location: Vegas...Formerly Tennessee
Posts: 9,537
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (SilentHill)

I used to know how to do it, but I took the class over a year ago and no longer have my book. Sorry I cant help
.BigSexy is offline   Reply With Quote
Old 06-17-2007, 03:36 PM   #9
SilentHill
Honda-Tech Member
Garage is empty, add now
 
SilentHill's Avatar
 
Join Date: Oct 2004
Posts: 268
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (.BigSexy)

thanks a million you were right the formula is

xbar + or - Z* times sigma divided by the square root of N

that Z* score worked

Click the image to open in full size. HondaTech GDD
__________________
Quote:
Originally Posted by BoredNStroked
I heard it will still get a girl pregnant.....
SilentHill is offline   Reply With Quote
Old 06-17-2007, 03:41 PM   #10
.BigSexy
most hood white kid
Garage is empty, add now
 
Join Date: Jul 2004
Location: Vegas...Formerly Tennessee
Posts: 9,537
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (SilentHill)

Quote:
Originally Posted by SilentHill
thanks a million you were right the formula is

xbar + or - Z* times sigma divided by the square root of N

that Z* score worked

Click the image to open in full size. HondaTech GDD
xbar is the mean and sigma is the standard deviation right?
.BigSexy is offline   Reply With Quote
Old 06-17-2007, 03:45 PM   #11
SilentHill
Honda-Tech Member
Garage is empty, add now
 
SilentHill's Avatar
 
Join Date: Oct 2004
Posts: 268
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (.BigSexy)

Xbar is sample mean sigma is population standard deviation
__________________
Quote:
Originally Posted by BoredNStroked
I heard it will still get a girl pregnant.....
SilentHill is offline   Reply With Quote
Old 06-17-2007, 03:48 PM   #12
.BigSexy
most hood white kid
Garage is empty, add now
 
Join Date: Jul 2004
Location: Vegas...Formerly Tennessee
Posts: 9,537
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (SilentHill)

Quote:
Originally Posted by SilentHill
Xbar is sample mean sigma is population standard deviation
I was close...like I said, its been over a year. Give me a book, and I can figure it out.

I am taking Quantitative Methods II this semester
.BigSexy is offline   Reply With Quote
Old 06-17-2007, 03:50 PM   #13
lammy
Honda-Tech Member
Garage is empty, add now
 
lammy's Avatar
 
Join Date: Jul 2003
Posts: 2,439
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (SilentHill)

http://davidmlane.com/hyperstat/z_table.html

Use that.

lammy is offline   Reply With Quote
Old 06-17-2007, 04:19 PM   #14
SilentHill
Honda-Tech Member
Garage is empty, add now
 
SilentHill's Avatar
 
Join Date: Oct 2004
Posts: 268
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (.BigSexy)

Quote:
Originally Posted by .BigSexy
I was close...like I said, its been over a year. Give me a book, and I can figure it out.

I am taking Quantitative Methods II this semester
yeah i got screwed in college i really dont like math and im on my 4th math class in college. I took topics in contemporary finite math, Calculus, statistics, and now im in statistics for social sciences. Thats overkill for a political science major if you ask me but thats A&M for ya. Click the image to open in full size.
__________________
Quote:
Originally Posted by BoredNStroked
I heard it will still get a girl pregnant.....
SilentHill is offline   Reply With Quote
Old 06-17-2007, 04:26 PM   #15
ipleadthe5th
Photoshop Guru
Garage is empty, add now
 
ipleadthe5th's Avatar
 
Join Date: May 2004
Location: Spartanburg, SC
Posts: 1,969
iTrader Rating: (0)
Default Re: What is the Z* for a 98% confidence interval (SilentHill)

I would help but I got a B in Prob and Stat and hated every minute of that class. Click the image to open in full size.

Good luck
__________________
[Regarding BAN, talk to SilentEdge]
ipleadthe5th is offline   Reply With Quote
Old 06-17-2007, 05:54 PM   #16
Burrito
Eat me
Garage is empty, add now
 
Burrito's Avatar
 
Join Date: Jun 2003
Location: New Brunswick, NJ
Posts: 277
iTrader Rating: (0)
Send a message via AIM to Burrito
Default

i thought this thread was about that dude z.1 or something like that, was a total douchbag... was he banned? havent seen posts from him
__________________
Canon 5Dm2 / 24-70L / Sigmalux / 135L / 430ex2
Burrito is offline   Reply With Quote
 
 
 
submit to reddit
Reply

Tags
98, ci, confidence, figure, find, for, honda, interval, score, z, ztable

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -8. The time now is 03:11 AM.



2008 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.
Emails & Contact Details