Administrative Assistants in a Local University Have Been Asked to Prove

question 97

Short Answer

Administrative assistants in a local university have been asked to prove their proficiency in the use of spreadsheet software by taking a proficiency test. Historically, the mean test score has been 74 with a standard deviation of 4. A random sample of size 40 is taken from the 100 administrative assistants and asked to complete the proficiency test.
A) Calculate the expected value and the standard deviation (standard error) of the sample mean.
B) What is the probability that the sample mean score is more than 75, the predetermined passing score?

• A) Calculate the expected value and the standard deviation (standard error) of the sample mean.
• B) What is the probability that the sample mean score is more than 75, the predetermined passing score?

---

Definitions:

Web Browsers

Software applications designed to retrieve, present, and navigate through information on the World Wide Web, interpreting web pages and displaying them to users.

Web Address

The unique string of characters that identifies a specific resource on the internet, such as a website's URL.

File Transfer Protocol (FTP)

A standard network protocol used to transfer files from one host to another over a TCP-based network, such as the Internet.

Hypertext Transfer Protocol (HTTP)

The protocol that allows files to be transferred from a web server so that you can see them on your computer by using a browser.