Doğru testi seçme: finans

Finans alanında, yatırım stratejistleri getirileri en üst düzeye çıkarmak için farklı yaklaşımları sürekli değerlendirir. Bir finans şirketinin iki yatırım stratejisinin, "Kantitatif Analiz" ve "Temel Analiz"in etkinliğini ölçmek istediği bir senaryoyu düşün. Şirket, her stratejiyi bir yıl boyunca ayrı yatırım portföyleri grubuna uyguladı ve şimdi iki grubun ortalama yıllık getirisini karşılaştırarak strateji getirilerinde fark olup olmadığını araştırmanı istiyor.

Veriler investment_returns DataFrame'inde mevcut. pandas as pd, numpy as np ve aşağıdaki fonksiyonlar da yüklendi:

from scipy.stats import ttest_ind
from scipy.stats import f_oneway
from scipy.stats import chi2_contingency

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Building knowledge in experimental design allows you to test hypotheses with best-practice analytical tools and quantify the risk of your work. You’ll begin your journey by setting the foundations of what experimental design is and different experimental design setups such as blocking and stratification. You’ll then learn and apply visual and analytical tests for normality in experimental data.

Exercise 1: Setting up experiments Exercise 2: Non-random assignment of subjects Exercise 3: Random assignment of subjects Exercise 4: Experimental data setup Exercise 5: Blocking experimental data Exercise 6: Stratifying an experiment Exercise 7: Which was stratified?Exercise 8: Normal data Exercise 9: Visual normality in an agricultural experiment Exercise 10: Analytical normality in an agricultural experiment

You'll delve into sophisticated experimental design techniques, focusing on factorial designs, randomized block designs, and covariate adjustments. These methodologies are instrumental in enhancing the accuracy, efficiency, and interpretability of experimental results. Through a combination of theoretical insights and practical applications, you'll acquire the skills needed to design, implement, and analyze complex experiments in various fields of research.

Exercise 1: Factorial designs: principles and applications Exercise 2: Understanding marketing campaign effectiveness Exercise 3: Heatmap of campaign interactions Exercise 4: Factorial designs and randomized block designs Exercise 5: Randomized block design: controlling variance Exercise 6: Implementing a randomized block design Exercise 7: Visualizing productivity within blocks by incentive Exercise 8: ANOVA within blocks of employees Exercise 9: Covariate adjustment in experimental design Exercise 10: Importance of covariates Exercise 11: Covariate adjustment with chick growth

Master statistical tests like t-tests, ANOVA, and Chi-Square, and dive deep into post-hoc analyses and power analysis essentials. Learn to select the right test, interpret p-values and errors, and skillfully conduct power analysis to determine sample and effect sizes, all while leveraging Python's powerful libraries to bring your data insights to life.

Exercise 1: Doğru istatistiksel testi seçmek Exercise 2: Doğru testi seçme: petrokimyasallar Exercise 3: Doğru testi seçmek: insan kaynakları Exercise 4: Doğru testi seçme: finans

Geçerli Egzersiz

Exercise 5: ANOVA sonrasında post-hoc analiz Exercise 6: Anksiyete tedavileri ANOVA Exercise 7: Tukey'nin HSD testini uygulama Exercise 8: Bonferroni düzeltmesini uygulama Exercise 9: P-değerleri, alfa ve hatalar Exercise 10: Oyuncak dayanıklılığını analiz etme Exercise 11: Dayanıklılık farklarını görselleştirme Exercise 12: Anlamlılık düzeylerinin rolü Exercise 13: Güç analizi: örneklem ve etki büyüklüğü Exercise 14: Etki büyüklüğünün amacı Exercise 15: Enerji çalışması için gerekli örneklem büyüklüğünü tahmin etme

Hop into the complexities of experimental data analysis. Learn to synthesize insights using pandas, address data issues like heteroscedasticity with scipy.stats, and apply nonparametric tests like Mann-Whitney U. Learn additional techniques for transforming, visualizing, and interpreting complex data, enhancing your ability to conduct robust analyses in various experimental settings.

Exercise 1: Synthesizing insights from complex experiments Exercise 2: Visualizing loan approval yield Exercise 3: Exploring customer satisfaction Exercise 4: Effectively communicating experimental data Exercise 5: Addressing complexities in experimental data Exercise 6: Check for heteroscedasticity in shelf life Exercise 7: Exploring and transforming shelf life data Exercise 8: Applying nonparametric tests in experimental analysis Exercise 9: Visualizing and testing preservation methods Exercise 10: Further analyzing food preservation techniques Exercise 11: Congratulations!