Using α =

question 31

Multiple Choice

Using α = .04, a confidence interval for a population proportion is determined to be .65 to .75. If the level of significance is decreased, the interval for the population proportion _____.

• A) becomes narrower
• B) becomes wider
• C) does not change
• D) Not enough information is provided to answer this question.

Describe the effects of acids and bases on indicators such as pH.

Calculate the concentration of hydrogen ions ([H+]) from pH values and vice versa.

Understand the concepts of reduction and oxidation in chemical reactions.

Recognize common compounds and their old or common names.

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Employers

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