A technician is calculating the signal decay in a communications circuit represented by the expression $z^{-5} \cdot z^{-3}$. Arrange the following steps in the correct order to simplify this expression to its final form using a positive exponent.

A quality control technician is using a mathematical model to determine the defect rate in a batch of manufactured parts. The formula requires simplifying the expression $z^{-5} \cdot z^{-3}$. To combine these terms using the Product Property for Exponents as the first step, which specific operation must the technician recall and perform on the exponents?

An electronics technician is analyzing the signal attenuation in different parts of a communication system. Match each expression representing a power loss factor with its equivalent simplified form using a positive exponent.

A laboratory technician is documenting a calibration factor represented by the expression $z^{-4} \cdot z^{-5}$. The technician simplifies this expression to $\frac{1}{z^9}$ for the final report. Is this simplification correct according to the Product Property for Exponents and the definition of negative exponents?

A technician at a semiconductor plant is calculating a miniaturization factor represented by the expression $z^{-5} \cdot z^{-3}$. When this factor is simplified and written with only a positive exponent, it takes the form $\frac{1}{z^n}$. The value of the exponent $n$ is ____.