) : For example, testing if a new marketing campaign significantly increased sales compared to the historical average. p-values and Significance Levels (
) : Determining the probability that an observed result happened by pure chance. : etf2334
: Monitoring manufacturing variances to reduce defects. ) : For example, testing if a new
: The distribution of a statistic (like the mean) across many samples, which is the foundation of the Central Limit Theorem. ) : For example
Analyzing the relationship between two variables (e.g., how advertising spend impacts revenue). Estimating the ( ) to predict future outcomes. Multiple Regression Analysis :
Students in this unit typically use software like to perform:
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