kuliah 9 uji beda mean
TRANSCRIPT
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UJI BEDA MEAN
MITRA, SKM, MKM
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UJI BEDA MEAN SATU SAMPEL
TUJUAN : MENGUJI PERBEDAAN MEANDATA SAMPELDG DATA POPULASIADA DUA JENIS A. BILA JUMLAH SAMPEL BESAR ATAU
DIKETAHUI
UJI Z
n
XZ
/
=
SE
XZ
=
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B. BILA JUMLAH SAMPEL KECIL ATAU
TIDAK DIKETAHUI UJI T
SE
Xt
=n
Xt
/
=
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contoh
Lao!an D"n#$% & tah'n (a(')$n*$+'t#an !ata!ata +$!at +a-an+a*" a-a(ah /00 1!. K$)'-"an %aat
"n" -"(a#'#an %'!2$" -1 )$n1a)+"(%a)$( 300 +a*" -an -"-aat#an !ata!ata 440 1! -1 %- 400 1!. U5"(ah
aa#ah a-a $!+$-aan )$an +$!at+a*" anta!a tah'n (a(' -1 %aat "n" 6
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Ja7a+ :
Ho : 8 9 /00Ha : 8 /00Z9 440 ; /00 9 ? 400@300
P 2a('$ 9 0.4 ; 0./=>? 9 0,003.0= #1,%$-an1#an 't# "+' *1 t"-a# )$n*'%'"$#%#('%"F a-( 4>.0= #1 -1 %- =.?< #1
Group Statistics
< 4>.0= =.?< .0?
< 44.00 >.0=0 3.C>?
$#%#('
t-# $#%#('%"F
$#%#('%"F
++"+'
N M$an St-. D$2"at"on
St-. E!!o!
M$an
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Ut# )$("hat '5" #$%a)aan 2a!"an '5" ($2$n$. P2a('$ a(ha 0.042a!"an %a)a.
Pa-a ha%"( ana("%"%, 2a('$ 't# '5" ($2$n$ a-( 0,0?2a!"an
%a)a.S$(an5'tn*a -" ca!" '5" t 't# 2a!"an %a)a $'a( 2a!"an%, -"#o(o) %"1 ta"($- 90, /=, a!t"n*a t"-a# a-a$!+$-aan *an1 %"1n"F"#an !ata!ata +$!at "+' anta!a "+'*an1 )$n*'%'" $#%#('%"F -$n1an "+' *an1 t"-a#
)$n*'%'" $#%#('%"F.
Independent Samples Test
3./ .0? 3.3?0 // ./> ? .
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Contoh Int$!!$ta%"
Rata!ata +$!at +a-an "+' *an1 )$n*'%'"$#%#('%"F a-a(ah 44 #1 -1 %- >.0= #1,%$-an1#an 't# "+' *1 t"-a# )$n*'%'"
$#%#('%"F a-( 4>.0= #1 -1 %- =.?< #1. U5"Stat"%t"# -$n1an )$n11'na#an '5" t"n-$$n-$nt )$n'n5'##an +ah7a t"-a#a-a $!+$-aan *an1 %"1n"F"#an !ata!ata
+$!at "+' anta!a "+' *an1 )$n*'%'"$#%#('%"F -$n1an "+' *an1 t"-a# )$n*'%'"$#%#('%"F 90, /=.
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UJI T DEPENDEN T a"!$-
T'5'an $n$("t"an : )$n1$tah'" $!+$-aan#a-a! H+ anta!a $n1'#'!an $!ta)a-$n1an $n1'#'!an #$ -'aKa-a! H+N')$!"#P$n1'#'!an $!ta)a -an #$-'a :
Kat$1o!"# a"!$-@+$!a%an1anU5" T -$$n-$n@+$!a%an1an@a"!$-
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Rata!ata #a-a! H+ a-a $n1'#'!an $!ta)a a-( 30,< 1! -1 %.-
3,