Suppose You Are Testing the Null Hypothesis That a Population $\sigma$

question 101

Multiple Choice

Suppose you are testing the null hypothesis that a population mean is less than or equal to 46, against the alternative hypothesis that the population mean is greater than 46.If the sample size is 25, $\sigma$ is known, and α = .01, the critical value of z is _______.

• A)1.645
• B)-1.645
• C)1.28
• D)-2.33
• E)2.33

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Definitions:

Psychological Disorder

A condition characterized by abnormal thoughts, feelings, or behaviors that lead to personal distress or significant impairment in social or occupational functioning.

Statistics Canada

The national statistical agency of Canada, responsible for producing statistics to help understand Canada's population, resources, economy, society, and culture.

Lifetime Prevalence

The proportion of individuals in a population who have ever experienced a specific disorder at any time in their lives up to the point of assessment.

Psychological Disorders

Mental disorders characterized by patterns of thought, feeling, and behavior that are significantly distressing or impairing in social, occupational, or other important functions.