$$\sqrt { \frac { \sigma _ { 1 } } { n _ { 1 } } + \frac { \sigma _ { 2 } } { n _ { 2 } } }$$

question 1

True/False

$$\sqrt { \frac { \sigma _ { 1 } } { n _ { 1 } } + \frac { \sigma _ { 2 } } { n _ { 2 } } }$$ The standard error of difference of two large (independent) sample means is

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Definitions:

Exponential Distribution

A probability distribution that describes the time between events in a process where occurrences happen at a constant rate.

Proportion

A portion, segment, or fraction when evaluated in relation to its entirety.

Chi-squared Curve

Describes the distribution of a chi-squared statistic, used in hypothesis testing to determine how well observed data fit with expected data.

Degrees of Freedom

The number of independent values or quantities that can vary in the analysis without violating any constraints.