A Random Sample of 49 Cast Aluminum Pots Is Taken

question 90

Multiple Choice

A random sample of 49 cast aluminum pots is taken from a production line once every day. The number of defective pots is counted. The proportion of defective pots has been closely examined in the past and is believed to be 0.05. The sample proportions for the week are shown in the accompanying table. Is the production process in control?

• A) No, because the sample proportions show a downward trend
• B) No, because the sample proportions fall within the upper and lower control limits
• C) Yes, because the sample proportions show a downward trend
• D) Yes, because the sample proportions fall within the upper and lower control limits

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Definitions:

Norm-based Rules

Guidelines or standards of behavior that are based on societal or cultural norms within a specific community or group.

Forecasting Method Categories

The classification of different approaches and techniques used to predict future aspects of business operations, such as sales and market trends.

Norm-based Rules

Represents guidelines or principles derived from societal norms or customary practices, often informing behavior or processes within organizations.

Historical Data

Refers to collected information and records from past periods used to analyze trends, forecast future occurrences, or serve as a basis for research.