For Statistical Inference About the Mean of a Single Population

question 95

Short Answer

For statistical inference about the mean of a single population when the population standard deviation is unknown, the number of degrees for freedom for the t-distribution is equal to n - 1 because we lose one degree of freedom by using the: $\begin{array}{|l|l|}\hline A&\text { sample mean as an estimate of the population mean.}\\\hline B&\text {sample standard deviation as an estimate of the population standard deviation. }\\\hline C&\text {sample proportion as an estimate of the population proportion. }\\\hline D&\text { sample size as an estimate of the population size.}\\\hline \end{array}$

---

Definitions:

Print Ads

Advertisements published in physical formats such as magazines, newspapers, brochures, or billboards, as opposed to digital channels.

Product Research

The process of gathering information about consumers' needs and preferences to guide the development or improvement of products.

Social Media

Digital platforms and technologies that enable users to create, share content, and participate in social networking.

Unethical

Actions or behaviors that don't meet accepted standards of moral conduct.