Do Heavier Cars Use More Gasoline? to Answer This Question,a

question 8

Multiple Choice

Do heavier cars use more gasoline? To answer this question,a researcher randomly selected 15 cars.He collected their weight (in hundreds of pounds) and the mileage (MPG) for each car.From a scatter plot made with the data,a linear model seemed appropriate.The following output was obtained from SPSS: To test if there is a significant straight-line relationship between the weight and the mileage of a car,we can perform a t test.What is the value of the t statistic for this test?

• A)t = -3.182
• B)t = 6.445
• C)t = 6.780
• D)This cannot be determined from the information given.

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Definitions:

Body Fat Percentage

Body fat percentage is a measure of the proportion of fat in one's body compared to one's total body mass, used to assess an individual's health or fitness level.

Pregnancy

The state of carrying a developing embryo or fetus within the female body, typically lasting around 40 weeks from the last menstrual period.

Body Mass Index (BMI)

An indicator that calculates body fat using height and weight to classify adults into categories such as underweight, normal, overweight, and obese.

Kilocalories

Units of energy measurement, often used to express the energy content of food, equal to 1,000 small calories.