If and , Find and Simplify

question 85

Multiple Choice

If and , find and simplify. ​

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Definitions:

Equality of Means

A statistical hypothesis test to determine whether there is a significant difference between the means of two or more groups.

Population Variances

Population variances measure the degree to which each number in a set differs from the mean of the population, showing the spread or dispersion within the set.

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is true.

Chi-Squared Distribution

A probability distribution widely used in statistical hypothesis tests, particularly in tests of independence and goodness of fit.