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BÖLÜM 4
BETİMSEL İSTATİSTİKLER
İÇİNDEKİLER
1. ÖLÇÜM DÜZEYLERİ
2. SIK KULLANILAN BETİMSEL İSTATİSTİKLER
3. NORMAL DAĞILIM VE BETİMSEL İSTATİSTİKLER ARASINDAKİ İLİŞKİ
4. …FREQUENCİES MENÜSÜ İLE BETİMSEL İSTATİSTİKLERİN İNCELENMESİ
5. …DESCRİPTİVES MENÜSÜ İLE BETİMSEL İSTATİSİKLERİN İNCELENMESİ
6. …EXPLORE MENÜSÜ İLE BETİMSEL İSTATİSTİKLERİN İNCELENMESİ
1. ÖLÇÜM DÜZEYLERİ
Ne düzeyde bir ölçüm yapılarak veri toplandığı, o veriye ilişkin değişkenin nasıl analiz
edileceğini de belirtmektedir.
Bu durum hem betimsel istatistikler için geçerlidir, hem de daha sonra göreceğimiz gibi,
çıkarımsal istatistikler için geçerlidir.
• SINIFLAYICI ÖLÇÜM
• SIRALAYICI ÖLÇÜM
• ARALIKLI ÖLÇÜM
• ORANLI ÖLÇÜM
• UYGULAMALI İSTATİSTİKTE KULLANILAN SÜREKLİ ÖLÇÜM KAVRAMI
2. SIK KULLANILAN BETİMSEL
İSTATİSTİKLER
• FREKANS
• TEPE DEĞER
• ORTANCA
• ORTALAMA
• STANDART SAPMA
• VARYANS
• ARALIK
• ÇEYREKLER ARASI ARALIK
• ÇARPIKLIK
• SİVRİLİK
3. NORMAL DAĞILIM VE BETİMSEL
İSTATİSTİKLER ARASINDAKİ İLİŞKİ
İdeal normal dağılımda tepe değer, ortanca ve ortalama birbirine eşittir.
Ayrıca merkezi eğilim etrafında gözlemlerin ne kadarının toplanacağı da dağılımın normal
olup olmadığını belirlemektedir.
4. …FREQUENCİES MENÜSÜ İLE BETİMSEL
İSTATİSTİKLERİN İNCELENMESİ
Ölçüm düzeyleri farklı olduğu için sürekli değişkenler ile gruplayıcı değişkenler için
incelenebilecek betimsel istatistikler farklıdır.
Bu nedenle Analyze> DescriptiveStatistic> Frequencies menüsünde öncelikle gruplayıcı
değişkenler olan ‘’cinsiyet’’ ve ‘’yas_gr’’ değişkenleri incelenecektir.
5. …DESCRİPTİVES MENÜSÜ İLE
BETİMSEL İSTATİSTİKLERİN İNCELENMESİ
6. …EXPLORE MENÜSÜ İLE BETİMSEL
İSTATİSTİKLERİN İNCELENMESİ
Betimsel istatistikleri incelemek için Analyze> DescriptiveStatistics> Explore menüsüne
geliniz.
Menüyü açtığınızda karşınıza çıkan penceredeki Dependent List adlı kutu, betimsel
istatistiklerini görmek istediğiniz değişkenleri taşıyacağınız kutudur.
Bölüm 4.pptx
Bölüm 4.pptx
Bölüm 4.pptx
Bölüm 4.pptx
Bölüm 4.pptx

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Bölüm 4.pptx

  • 1.
  • 3. İÇİNDEKİLER 1. ÖLÇÜM DÜZEYLERİ 2. SIK KULLANILAN BETİMSEL İSTATİSTİKLER 3. NORMAL DAĞILIM VE BETİMSEL İSTATİSTİKLER ARASINDAKİ İLİŞKİ 4. …FREQUENCİES MENÜSÜ İLE BETİMSEL İSTATİSTİKLERİN İNCELENMESİ 5. …DESCRİPTİVES MENÜSÜ İLE BETİMSEL İSTATİSİKLERİN İNCELENMESİ 6. …EXPLORE MENÜSÜ İLE BETİMSEL İSTATİSTİKLERİN İNCELENMESİ
  • 4. 1. ÖLÇÜM DÜZEYLERİ Ne düzeyde bir ölçüm yapılarak veri toplandığı, o veriye ilişkin değişkenin nasıl analiz edileceğini de belirtmektedir. Bu durum hem betimsel istatistikler için geçerlidir, hem de daha sonra göreceğimiz gibi, çıkarımsal istatistikler için geçerlidir.
  • 5. • SINIFLAYICI ÖLÇÜM • SIRALAYICI ÖLÇÜM • ARALIKLI ÖLÇÜM • ORANLI ÖLÇÜM • UYGULAMALI İSTATİSTİKTE KULLANILAN SÜREKLİ ÖLÇÜM KAVRAMI
  • 6. 2. SIK KULLANILAN BETİMSEL İSTATİSTİKLER • FREKANS • TEPE DEĞER • ORTANCA • ORTALAMA • STANDART SAPMA • VARYANS • ARALIK • ÇEYREKLER ARASI ARALIK • ÇARPIKLIK • SİVRİLİK
  • 7.
  • 8. 3. NORMAL DAĞILIM VE BETİMSEL İSTATİSTİKLER ARASINDAKİ İLİŞKİ İdeal normal dağılımda tepe değer, ortanca ve ortalama birbirine eşittir. Ayrıca merkezi eğilim etrafında gözlemlerin ne kadarının toplanacağı da dağılımın normal olup olmadığını belirlemektedir.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13. 4. …FREQUENCİES MENÜSÜ İLE BETİMSEL İSTATİSTİKLERİN İNCELENMESİ Ölçüm düzeyleri farklı olduğu için sürekli değişkenler ile gruplayıcı değişkenler için incelenebilecek betimsel istatistikler farklıdır. Bu nedenle Analyze> DescriptiveStatistic> Frequencies menüsünde öncelikle gruplayıcı değişkenler olan ‘’cinsiyet’’ ve ‘’yas_gr’’ değişkenleri incelenecektir.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21. 5. …DESCRİPTİVES MENÜSÜ İLE BETİMSEL İSTATİSTİKLERİN İNCELENMESİ
  • 22.
  • 23.
  • 24.
  • 25.
  • 26. 6. …EXPLORE MENÜSÜ İLE BETİMSEL İSTATİSTİKLERİN İNCELENMESİ Betimsel istatistikleri incelemek için Analyze> DescriptiveStatistics> Explore menüsüne geliniz. Menüyü açtığınızda karşınıza çıkan penceredeki Dependent List adlı kutu, betimsel istatistiklerini görmek istediğiniz değişkenleri taşıyacağınız kutudur.