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?

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Definitions:

SYMLOG Subscale

Stands for Systematic Multiple Level Observation of Groups subscale, a methodological tool used to assess and categorize behaviors within group interactions.

Domineering

Exhibiting assertive, controlling, or dominant behavior, often at the expense of others.

Tough-Minded

Describing someone who is practically oriented and resolute, often showing a firmness or determination in dealing with difficult situations.

Egocentric

Egocentric describes a perspective where an individual is overly focused on their own viewpoints and experiences, disregarding others'.