Lube-Tech Is a Major Chain Whose Primary Business Is Performing

question 126

True/False

Lube-Tech is a major chain whose primary business is performing lube and oil changes for passenger vehicles. The national operations manager has stated in an industry newsletter that the mean number of miles between oil changes for all passenger cars exceeds 4,200 miles. To test this, an industry group has selected a random sample of 100 vehicles that have come into a lube shop and determined the number of miles since the last oil change and lube. The sample mean was 4,278 and the standard deviation was known to be 780 miles. Based on this information, the p-value for the hypothesis test is less than 0.10.

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Brain

The organ in the head of humans and other vertebrates responsible for thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger, and every process that regulates our body.

White

A color that results from the reflection of all the rays of visible light, symbolizing purity or cleanliness in many cultures.

Outermost Layer

The surface layer or the most external layer of an object or structure, such as the epidermis on the human body or the outer layer of a planet.

Eye

The organ of vision that detects light and sends signals through the optic nerve to the brain.