Sunday, November 30, 2008
1dec08
i just managed to somehow finish getting my stats stuff right??
i'm not sure too.
anyway,tomorrow's stats paper!!
good luck!
wish me luck too!
tee hee.
quan slept already,but he's gonna wake up at 4 am to continue studying.
LOL.
if i were him, i don't think i will be able to wake up.
haha.
i have to study till the end then look for my beddy!!
LOL.
oh my..
i just remembered that i'm not sure if i can recall my definition.
i'm soooo deaddddd...
sampling-a selection of a few elements from an entire collection of data in order to make an inference or conclusion about the population(???)
reasons for sampling-*time constraint
*high cost
*destruction of items tested
*population may be infinite
methods for sampling-*cluster
*systematic
*simple random
*stratified
estimation-process of using sample statistics to estimate the corresponding population parameter(???)
point estimate-single value used to estimate an unknown population parameter
interval estimate-range of value used to estimate an unknown parameter
confidence level-a degree of certainty that interval will include the actual value of population parameter.(???)
confidence interval-an interval estimate which there is a specified degree of certainty that actual value of population parameter will fall within the interval.(???)
yay!i got all right!
haha.
except for the estimation which i forgot to add and unknown.
LOL.
i'm hungry~~~
hehe.
i think i shall go sleep now instead of eating.
tee hee.
quan,jiayou for tomorrow!!u can do it!
hehe.
i just managed to somehow finish getting my stats stuff right??
i'm not sure too.
anyway,tomorrow's stats paper!!
good luck!
wish me luck too!
tee hee.
quan slept already,but he's gonna wake up at 4 am to continue studying.
LOL.
if i were him, i don't think i will be able to wake up.
haha.
i have to study till the end then look for my beddy!!
LOL.
oh my..
i just remembered that i'm not sure if i can recall my definition.
i'm soooo deaddddd...
sampling-a selection of a few elements from an entire collection of data in order to make an inference or conclusion about the population(???)
reasons for sampling-*time constraint
*high cost
*destruction of items tested
*population may be infinite
methods for sampling-*cluster
*systematic
*simple random
*stratified
estimation-process of using sample statistics to estimate the corresponding population parameter(???)
point estimate-single value used to estimate an unknown population parameter
interval estimate-range of value used to estimate an unknown parameter
confidence level-a degree of certainty that interval will include the actual value of population parameter.(???)
confidence interval-an interval estimate which there is a specified degree of certainty that actual value of population parameter will fall within the interval.(???)
yay!i got all right!
haha.
except for the estimation which i forgot to add and unknown.
LOL.
i'm hungry~~~
hehe.
i think i shall go sleep now instead of eating.
tee hee.
quan,jiayou for tomorrow!!u can do it!
hehe.
what we could have been, 11:43 PM.
