Presentasi tugas besar statistika
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Transcript of Presentasi tugas besar statistika
![Page 1: Presentasi tugas besar statistika](https://reader031.fdocuments.net/reader031/viewer/2022013102/55abaa5b1a28ab545e8b468b/html5/thumbnails/1.jpg)
Tugas StatistikaPelayanan Minimarket
Oleh:Dedy Prastyo
Endah Ratna NingtyasFikri Gojali
Giovani Anggasta HIrvan RifanaMulyani
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Identifikasi Masalah
• Mengetahui adakah perbedaan mekanisme
pelayanan kasir Indomaret dan Alfamart
• Membandingkan lamanya pelayanan kasir
minimarket antara alfamart dan indomaret
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Metode Pemecahan Masalah secara Statistik
Indentifikasi Masalah :• Variable/Diskrit• n < 30 atau n > 30
Penyajian Statistik Deskriptif :• Distribusi Frekuensi• Ukuran pemusatan
dan Penyebaran
Distribusi Sampling :• Mean sampling• Proporsi sampling
Estimasi populasi :• Jumlah sampel• Flowcart estmasi
Uji Hipotesis :• Prosedur Uji Hipotesis• Sampel Tunggal atau• Sampel Ganda
Uji ANOVA :• Varians sampling
populasi bernilai sama ???
Regresi dan Korelasi :• Hubungan Parameter
Pengendalian Mutu :• Sampel A (LCL dan UCL)• Sampel B (LCL dan UCL)
Are u Engineer ??? I ‘m Engineer
Mulai
Identifikasi Masalah Populasi (Statistik
Desktiptif)
Kumpulkan Data Sub Sampel (identifikasi distribusi sampling)
Data Cukup
Data Sampel Baru
Penyajian Data
Distribusi Sampling
Estimasi Uji HipotesisUji ANOVA
Regresi dan Korelasi
Pengendalian Mutu
Selesai
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Kumpulan Data Sub-Sampel(Identifikasi Distribusi Sampling)
ALFAMART
x f
1 -31 10 16 160 51.37 513.7 2638.88 26388.77
32 - 62 11 47 517 20.37 224.07 414.94 4564.31
63 - 93 6 78 468 10.63 63.78 112.97 677.80
94 - 124 2 109 218 41.63 83.26 1732.94 3465.88
125 - 155 3 140 420 72.63 217.89 5274.91 15824.73
156 - 186 1 171 171 103.63 103.63 10738.88 10738.88
187 - 217 2 202 404 134.63 269.26 18124.85 36249.70
35 2358 434.88 1475.58 39038.36 97910.06
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HISTOGRAM
1-100 101-200 201-300
0
5
10
15
20
25
fre
ku
en
si (f
)
lamanya pelayanan kasir (sekon)
frekuensi (f)
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6
1-100 101-200 201-300
0
5
10
15
20
25
frekuensi (f)
lamanya pelayanan kasir (sekon)
fre
ku
en
si (f
)
ALFAMART
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Indomaret
x f
1 -31 2 16 32 86.8 173.6 7534.24 15068.5
32 - 62 10 47 470 55.8 558 3113.64 31136.4
63 - 93 11 78 858 24.8 273 615.04 6765.4
94 - 124 4 109 436 6.2 24.8 38.44 154
125 - 155 3 140 420 37.2 111.6 1383.84 4152
156 - 186 2 171 342 68.2 136.4 4651.24 9302.48
187 - 217 1 202 202 99.2 99.2 9840.64 9841
218 - 248 0 233 0 130.2 0 16952.04 0
249 - 279 0 264 0 161.2 0 25985.44 0
280 - 310 0 295 0 192.2 0 36940.84 0
311 - 341 1 326 326 223.2 223 49818.24 49818
342 - 372 0 357 0 254.2 0 64617.64 0
373 - 403 0 388 0 285.2 0 81339.04 0
404 - 434 0 419 0 316.2 0 99982.44 0
435 - 465 0 450 0 347.2 0 120547.84 0
466- 496 0 481 0 481 0 231361 0
497 - 527 1 512 512 409.2 409 167445 167445
35 3598 3178.0 2008.8 922166.2 293681.60
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1 -100 101-200 201-300 301-400 401-500
0
5
10
15
20
25
frekuensi (f)
lamanya waktu pelayanan (sekon)
fre
ku
en
si (f
)
INDOMARET
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1 -100 101-200 201-300 301-400 401-500
0
5
10
15
20
25fr
eku
en
si (f
)
lamanya waktu pelayanan (sekon)
frekuensi (f)INDOMARET
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Perbandingan Alfamart dan Indomaret
1 -100 101-200 201-300
0
5
10
15
20
25
indomaret
alfamart
Lamanya pelayanan kasir (sekon)
ind
om
are
t
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1-100 101-200 201-300
0
5
10
15
20
25
fre
ku
en
si (f)
lamanya pelayanan kasir (sekon)
frekuensi (f)
1 -100 101-200 201-300 301-400 401-500
0
5
10
15
20
25
fre
ku
en
si (f
)
lamanya waktu pelayanan (sekon)
frekuensi (f)INDOMARET
Alfamart
Perbandingan Histogram
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Estimasi
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Uji Hipotesis
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Regresi
ALFAMART INDOMARET
y = -1.6786x + 11.714R² = 0.7889
-2
0
2
4
6
8
10
12
0 2 4 6 8
y = -0.8833x + 8.3056R² = 0.3873
0
2
4
6
8
10
12
0 2 4 6 8 10
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Pengendalian Mutu
-150
-100
-50
0
50
100
150
200
250
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
Waktu
UCL
CL
LCL
Alfamart
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Pengendalian Mutu
-300
-200
-100
0
100
200
300
400
500
600
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
Waktu
UCL
CL
LCL
Indomaret
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Kesimpulan
• Tidak ada perbedaan mekanisme
pelayanan kasir baik di Indomaret
maupun Alfamart
• Lama atau tidaknya waktu pelayanan
tergantung pada banyak atau sedikitnya
barang yang dibeli konsumen,
pelayanannya secara tunai atau
menggunakan credit card.
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Dokumentasi
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THANK YOU