A Manufacturer Claims That Its Televisions Have an Average Lifetime $\alpha = 0.025$

question 8

Essay

A manufacturer claims that its televisions have an average lifetime of at least five years (60 months) with a population standard deviation of seven months.
Eighty-one televisions were selected at random, and the average lifetime was found to be 59 months. With $\alpha = 0.025$ , is the manufacturer's claim supported?

Understand the concept of simple linear regression and the relationship between variables.

Learn how to calculate the sum of squares for error in regression analysis.

Identify the different names and interpretations of the residual term in a regression equation.

Understand the interpretation of slope and y-intercept in the context of regression lines.

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Definitions:

Universal Applications

Broadly accessible and applicable tools or programs, often referring to software that can be used across various devices and operating systems.

Predict Outcomes

The process of forecasting or estimating the future results or effects of actions taken in the present.

Corporate Ethics Codes

A set of principles and guidelines that a company adopts to govern its employees' behavior, supporting ethical business practices.

Ethical Responsibility

The duty to act in a morally correct manner, taking into account the impacts of one's decisions and actions on others and society.