Useful tips for everyday
How many participants are needed for an independent t test? The two-sample t-test is valid if the two samples are independent simple random samples from…
How does confidence level change? Summary: Effect of Changing the Confidence Level Increasing the confidence level increases the error bound, making the confidence interval wider.…
Can you use ACF and pacf on non stationary series? Hence, if your underlying series are not stationary, you’re breaking the assumptions that are base…
How do you describe experimental design? Experimental design is the process of carrying out research in an objective and controlled fashion so that precision is…
What is variable selection? Variable selection is a collection of candidate model variables tested for significance during model training. Candidate model variables are also known…
What is the result of successfully applying a machine learning ML algorithms to analyze data? Machine Learning algorithms can predict patterns based on previous experiences.…
How do you analyze multiple variables in SPSS? Creating and Using a Multiple-Response Set in SPSS Open the Apples and Oranges. Choose Analyze→Multiple Response→Define Variable…
Do you need a normal distribution for ANOVA? ANOVA assumes that the residuals from the ANOVA model follow a normal distribution. Because ANOVA assumes the…
How to specify a discrete probability density function? To specify a discrete probability density function, you provide a table of the specific values of the…
Can you average MAPE? The mean absolute percentage error (MAPE) is a measure of how accurate a forecast system is. It measures this accuracy as…