Marble Inc

question 83

Multiple Choice

Marble Inc.makes countertops from a variety of high-end materials.To monitor the quality of its production processes the company randomly selects one countertop and counts the number of blemishes.The results for ten samples are shown below: Given the sample information above,the average number of defects per unit for this process would be

• A)160
• B)80
• C)16
• D)10

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Definitions:

Type II Error

Occurs in hypothesis testing when a false null hypothesis is not rejected, leading to the false conclusion that a difference or effect does not exist when it actually does.

Power

The probability that a statistical test will correctly reject a false null hypothesis; related to the capability to detect an effect if there is one.

Type II Error

The error that occurs when a statistical test fails to reject a false null hypothesis.

Type I Error

The incorrect rejection of a true null hypothesis, or "false positive," often denoted by alpha (α).