The First Unit of a Product Took 80 Work Days

question 66

Multiple Choice

The first unit of a product took 80 work days.The learning curve is estimated to be 90%.The time for the fourth unit will be about ________ work days and the time for the first four units will be about ________ work days.(Use Table E.3)

• A)51;250
• B)250;51
• C)65;285
• D)51;cannot be determined
• E)65;cannot be determined

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Definitions:

Null Hypothesis

A default statement that there is no effect or no difference, used as a starting point for statistical hypothesis testing.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution.

Chi-square Statistic

A statistical measure used to determine if there is a significant difference between the expected frequencies and the observed frequencies in one or more categories.

Wearing Glasses

The act of using corrective lenses mounted in frames that rest on the face to improve vision or protect the eyes.