Question: When a difference in treatment is decided to be due to more than random chance, what do you call the results? Group of answer choices

When a difference in treatment is decided to be due to more than random chance, what do you call the results?

Group of answer choices

Avoid or minimize bias

Statistically significant

Statistically different

Statistically extrapolated

If you add 10 to every value of a data set, what happens to the standard deviation?

Group of answer choices

It increases

It stays the same

It decreases

A five number summary contains the min, max, Q1, Q3, and what other value?

Group of answer choices

the 50th percentile

the Median

Q2

All of these answers are correct.

What kind of sample occurs when you put an ad in the newspaper and ask readers to take your survey?

Group of answer choices

An undercoverage sample

A random sample

A self-selected sample

A stratified sample

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