A local university administers a comprehensive examination to the recipients of a B.S. degree in Business Administration. A sample of 5 examinations is selected at random and scored. The scores are shown below. 
a.Compute the sample mean and the standard deviation.
b.Determine the margin of error at 95% confidence.
c.At 95% confidence, determine an interval for the mean of the population.
At 98% confidence, determine an interval for the mean of the population.
Definitions:
Availability of Data
Refers to the extent to which data is readily obtainable and accessible for use in decision-making processes.
Gross Hyphema
A severe condition where a large amount of blood collects in the front chamber of the eye, often as a result of trauma, significantly obstructing vision.
Anterior Chamber
The fluid-filled space inside the eye between the cornea and the iris, contributing to eye pressure.
Down Syndrome
A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by developmental delays and physical features.
Q1: The manager of a department store wants
Q4: A sample of 66 observations will be
Q38: In hypothesis testing, the tentative assumption about
Q42: Two percent of the parts produced by
Q73: A sample of 21 observations yielded
Q87: When the p-value is used for
Q102: Given that Z is a standard normal
Q118: A population has a mean of 80
Q120: Refer to Exhibit 7-3. The probability that
Q125: A professor at a local university noted