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DHL SmarTrucking Data Science Manager Interview Questions and Answers
DHL SmarTrucking Data Science Manager Interview Experiences
1 interview found
Anonymous
I applied via Job Portal and was interviewed before Jul 2019. There were 5 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Explain Logistic Regression. Can it be used for multivariate categorical variables?
- Ans.
Logistic Regression is a statistical method used to analyze the relationship between a dependent variable and one or more independent variables.
It is used to predict a binary outcome (0 or 1).
It estimates the probability of an event occurring.
It can handle both continuous and categorical independent variables.
Multivariate categorical variables can be used by creating dummy variables for each category.
- Q2. Explain the concept of ANOVA and t-tests
- Ans.
ANOVA and t-tests are statistical methods used to compare means of two or more groups.
ANOVA is used to compare means of three or more groups, while t-tests are used for two groups.
ANOVA tests if there is a significant difference between the means of the groups, while t-tests compare the means of the groups to see if they are significantly different.
ANOVA uses F-test to determine significance, while t-tests use t-distri...
- Q3. Case study related questions which test one's problem solving skills.
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