Decreasing the Alpha Level from α =

question 12

Multiple Choice

Decreasing the alpha level from α = .05 to α = .01 ____.​

• A)​increases the probability of a Type I error
• B)​increases the size of the critical region
• C)​increases the probability that the sample will fall into the critical region
• D)​decreases the probability of a Type I error

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Definitions:

Z-values

Standardized scores that indicate the number of standard deviations an element is from the mean of its distribution, used in statistical analysis.

Confidence Interval

A continuum of numerical values, deduced from sample analyses, presumed to encapsulate the value of an undefined population attribute.

Independent Samples

Two or more groups of data that are not related or influenced by the same variables, allowing for comparisons between the groups in statistical analysis.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the value of an unknown population parameter with a specified probability.