The Amount of Time to Complete a Particular Exam Is

question 31

Essay

The amount of time to complete a particular exam is believed to have a mean of 52 minutes and a standard deviation of 4.8 minutes. A sample of 36 students was selected and their times to finish the exam recorded.
Is the sampling distribution of the sample mean approximately normal?
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What is the mean?
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What is the standard deviation?
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What is the probability this sample produces an average of less than 50 minutes?
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If the sample mean is actually 50 minutes, is it likely that = 52?
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Explain.
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Definitions:

QBO

QuickBooks Online, a cloud-based accounting software solution for small to medium-sized businesses.

Internal Controls

Processes and procedures implemented by a company to ensure the integrity of financial and accounting information, promote accountability, and prevent fraud.

Non-Inventory Items

Goods or services that a company buys or sells but does not track quantities of, such as supplies or consulting services.

QBO

Stands for QuickBooks Online, a cloud-based accounting software designed for small to medium-sized businesses.