You Have Constructed a 95% Confidence Interval to Estimate the Mean

question 105

Multiple Choice

You have constructed a 95% confidence interval to estimate the mean number of people downloading music files from the internet using a sample of 150 people.Which of the following statements is/are true?
I.A 95% Confidence interval will be wider than a 99% confidence interval.
II.Sampling a smaller number of people will increase the margin of error.
III.Changing the sample size will change the value of t*.

• A)I,II,III
• B)I,II
• C)I
• D)II
• E)II,III

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Definitions:

Level of Management

The different stages or tiers in an organization's hierarchy, each with specific responsibilities, ranging from top executives to middle managers to front-line supervisors.

Responsibility Accounting

The process of measuring and reporting operating data by areas of responsibility.

Responsibility Centers

Responsibility centers refer to distinct segments or areas within a company for which individual managers are accountable for revenue, costs, or investments.

Responsibility Center

An organizational unit for which a manager is assigned responsibility over costs, revenues, or assets.