The Manager of a Local Shopping Mall Uses Simple Linear

question 71

Multiple Choice

The manager of a local shopping mall uses simple linear regression to develop an equation that predicts the number of daily shoplifting incidents at the mall's stores based on the number of security guards employed.The manager uses the following data: The slope of the regression line is b = -1.2; the intercept of the regression line is a = 14.5.
Use the results of the regression analysis to produce a 95% confidence interval for the expected number of shoplifting incidents when there are 5 security guards on duty.Based on the confidence interval, complete the following sentence:
With 95% confidence, the expected number of shoplifting incidents on days when there are 5 security guards on duty is between ______ and ______.

• A)-2.7, 19.4
• B)2.3, 14.4
• C)6.24, 10.36
• D)7.7, 8.9

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Definitions:

Growth Spurt

A rapid period of growth in height and weight, often occurring during puberty.

Adolescent Growth Spurt

A rapid increase in height and weight during puberty, resulting from accelerated bone and muscle growth.

Rapid Rate

A fast pace or speed at which something happens or progresses.

Double-Deficit Hypothesis

The theory of dyslexia that suggests that dyslexic children have biological deficits in two areas: phonological processing (interpreting sounds) and naming speed (for example, identifying letters, such as b versus d, or w versus m).