Q.For a 2×2contingency table: a b c d Prove that the chi-square test of independence is given by : X2square=. N( ad-bc)2square ----------------------------------- (a+c)(b+d)(a+b)(c+d) Where N=a+b+c+d Iska solution kya hai Plzzz
How is the answer 45.16 & 34.84 ? if the confidence limit is 2.56, it should be 40+-2.56*4 which comes out to be 50.24 or 29.76 even if the confidence limit is 1.96, it should be 40+-1.96*4 which comes out to be 47.84 or 32.16 please explain.
For 5% significance level, if it is two tailed distribution (i.e. if you use not equal to sign in H1) then use 1.96. If it is one tailed (if you use < or > signs in H1) then use 1.645
45.16 & 34.84
Q.For a 2×2contingency table:
a b
c d
Prove that the chi-square test of independence is given by :
X2square=. N( ad-bc)2square
-----------------------------------
(a+c)(b+d)(a+b)(c+d)
Where N=a+b+c+d
Iska solution kya hai
Plzzz
Jiji bohut bohut dhanyavaad aapka😃🙏
This is for large sample but in question you take a sample of 10 observations. Is this method correct for that???
Yes
How @@falguni1107
18:23 , 36.84 & 43.16
Got it...45.16....& 34.54...
How is the answer 45.16 & 34.84
?
if the confidence limit is 2.56, it should be 40+-2.56*4 which comes out to be 50.24 or 29.76
even if the confidence limit is 1.96, it should be 40+-1.96*4 which comes out to be 47.84 or 32.16
please explain.
bkl bdmas rule nhi ata ha kya
Great
Mu = ?
Mam jb baki method ki bhi confidential limit hai to vo Apne ku nhi pdhayi
How to find difference 🤔
N = ?
Confidence limit for 99%
34.84&45.16(ohh initially i did some calculation mistake)
It's 34.84 and 45.16
@@statisticsforall3433 thanks 😊
what is 900 in last? which value
It is population size
Population mean kya hai homework question mai?
In question sample mean is given i.e 2560/64 = 40
You have to find confidence interval for population mean using this sample mean
Standard deviation ka ye formula galat hai mam book me alag formula hai .apke S.D ke formulese answer galt ata hai 😢
Mu ki value kese find kare??
Mu chaiye hi kyu
Direct confidence limit find hogi
Uppar limit=45.16
Lower limit =34.84
Yes correct:)
How did you find without Mu
@@vineetsevak6184 no need of that here only ask for confidence limits
🙏🙏🙏🙏🙏🙏🙏🙏🙏
Higher 45.16 or Lower 34.84 🙂
Yes correct. Keep it up
Mam 5% me 1.96 Or 1.645 kab liya jata hai.. Plsss explain..
For 5% significance level, if it is two tailed distribution (i.e. if you use not equal to sign in H1) then use 1.96.
If it is one tailed (if you use < or > signs in H1) then use 1.645
Upper 45.16 and lower 34.84 write
34.84 and 45.16
84.64 and 43.36