Administrative Assistants in a Local University Have Been Asked to Prove

question 45

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 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 of the sample mean.
• B)What is the probability that the sample mean score is more than 75,the predetermined passing score?

---

Definitions:

Solicited Proposal

A solicited proposal is a document created in response to a request from a potential client or customer, outlining how the sender can meet the specific needs or requirements mentioned in the request.

Unsolicited Proposal

A proposal offered without a specific request, often aiming to pitch an idea or project to a potential client or partner.

Indirect Approach

A communication strategy where the main point or request is gradually introduced, often after providing background information or building a context.

Direct Approach

A straightforward method of dealing with a situation or problem, without avoiding difficult issues.