A Grocery Store Is Interested in Determining Whether or Not

question 25

Multiple Choice

A grocery store is interested in determining whether or not a difference exists between the shelf life of Tasty Choice doughnuts and Sugar Twist doughnuts.A random sample of 100 boxes of each brand was selected and the mean shelf life in days was determined for each brand.A 98% confidence interval for the difference of the means,
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,was determined to be (1.1,2.8) .

• A)We are 98% confident that a randomly selected box of Tasty Choice doughnuts will have a shelf life that is between 1.1 and 2.8 days longer than a randomly selected box of Sugar Twist doughnuts.
• B)Based on this sample,we are 98% confident that Sugar Twist doughnuts will last on average between 1.1 and 2.8 days longer than Tasty Choice doughnuts.
• C)Based on this sample,we are 98% confident that Tasty Choice doughnuts will last on average between 1.1 and 2.8 days longer than Sugar Twist doughnuts.
• D)Based on this sample,we know that 98% of Tasty Choice doughnuts last between 1.1 and 2.8 days longer than Sugar Twist doughnuts.
• E)We know that 98% of all random samples taken from the population will show that the mean shelf life of Tasty Choice doughnuts is between 1.1 and 2.8 days longer than the mean shelf life of Sugar Twist doughnuts.

Recognize the variations and influences in developming sexual orientation and racial/ethnic identity during adolescence.

Identify the characteristics of formal operational thought and how it differentiates from lower levels of thinking.

Analyze the significance of brain development during adolescence and its effect on behavior.

Explain the biological processes of puberty and its impact on adolescent development.

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Definitions:

Standardized

The process of making something conform to a standard in order to ensure consistency and comparability.

Norms

Shared expectations or rules within a society or group about how members should behave.

Predictive Validity

The extent to which a score on a scale or test predicts scores on some criterion measure, often used in the context of psychological testing and assessment.

Appropriate Norms

Standards of behavior that are considered acceptable and proper by a society or group.