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# Tutor profile: Maxim B.

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Maxim B.
Data Analyst with 8+ years of experience in quantitative research, complex data analysis and statistics, and research methods.
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## Questions

### Subject:R Programming

TutorMe
Question:

The "dplyr" package allows you to make a change "X" in a data frame (DF) and then save the change back to that data frame, with the following code: DF %>% X -> DF. What would this code do?: DF %<>% X.

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Maxim B.

DF %<>% X would make the same change in DF and immediately save the change to that DF, without needing the extra "X -> DF".

### Subject:Psychology

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Question:

What is the name of the state when people experience when there is a mismatch between their behavior and their beliefs, and how can it be resolved?

Inactive
Maxim B.

cognitive dissonance, and people can resolve it by either changing their behavior or their beliefs.

### Subject:Statistics

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Question:

If something is significant at the .05 level, what is the probability that a type 1 error occurred (i.e., your finding was spurious).

Inactive
Maxim B.

There is a 5% chance that a type 1 error occurred.

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