Which of These Substances Have Been Used as Replacements for Phosphates

question 44

Multiple Choice

Which of these substances have been used as replacements for phosphates in laundry detergents?

• A)Sodium carbonate
• B)Zeolites
• C)Enzymes
• D)Bleaches
• E)Both A and B

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Definitions:

One-tailed T-test

A statistical test used to determine if a sample mean significantly exceeds or is significantly less than a hypothesized value.

Mean Rating

The average score derived from the sum of all ratings divided by the number of ratings.

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The phenomenon where defendants who are deemed physically attractive may receive more lenient judgments or penalties.

F-test

A statistical test used to determine if there are significant differences between the variances of two or more groups.