A Grocery Store Manager Is Interested in Determining Whether or Not

question 34

Multiple Choice

A grocery store manager is interested in determining whether or not a difference exists between the shelf life of two different brands of doughnuts.A random sample of 100 boxes of each brand was selected and the shelf life in days was determined for each box.The sample results are given below.
Find a 98% confidence interval for
-
,that is,the difference in mean shelf life between Brand A and Brand B.

• A)(-0.02,1.62)
• B)(-1.12,-0.48)
• C)(0.48,1.12)
• D)(2.1,2.9)
• E)(-1.62,0.02)

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Definitions:

Stigmas

entail societal labels that identify and devalue individuals or groups based on certain characteristics or behaviors, leading to discrimination and exclusion.

Persistent

Exhibiting a steadfast and determined continuation of actions despite difficulties, obstacles, or discouragement.

Stigmatised Outgroups

Groups that are socially devalued and discriminated against based on negative stereotypes or attributes.

Downward Comparison

A self-assessment strategy where individuals compare themselves to those who are worse off in order to feel better about their own situation.