In Order to Use the Pooled Sample Variance When Testing

question 64

Multiple Choice

In order to use the pooled sample variance when testing the difference in two population means,what must be assumed?

• A)The sample means are unbiased estimates of the population means.
• B)The population variances are equal.
• C)The population means are equal.
• D)The population variances are inversely proportional.
• E)The sample means are unequal.

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Definitions:

Chunking

A memory technique involving organizing individual pieces of an information set into larger, more manageable units or chunks.

Automatic Processing

The subconscious aspect of cognition that handles tasks so well learned that they require little or no conscious thought.

Mnemonics

Memory aids, especially those techniques that use vivid imagery and organizational devices to enhance recall.

Spelling

The process or activity of writing or naming the letters of a word in the correct sequence.