TABLE 10-7 To Investigate the Efficacy of a Diet, a Random Sample

question 7

Short Answer

TABLE 10-7
To investigate the efficacy of a diet, a random sample of 16 male patients is drawn from a population of adult males using the diet. The weight of each individual in the sample is taken at the start of the diet and at a medical follow-up 4 weeks later. Assuming that the population of differences in weight before versus after the diet follow a normal distribution, the t-test for related samples can be used to determine if there was a significant decrease in the mean weight during this period. Suppose the mean decrease in weights over all 16 subjects in the study is 3.0 pounds with the standard deviation of differences computed as 6.0 pounds.
-Referring to Table 10-7, the p-value for a one-tail test is greater than ________ but less than ________.

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Definitions:

GVW Categories

Classification system for vehicles that categorizes them based on their gross vehicle weight, which includes the total weight of the vehicle and its maximum load.

Class 6

A classification referring to a medium-duty commercial truck as defined by the Department of Transportation, generally having a gross vehicle weight rating (GVWR) between 19,501 and 26,000 pounds.

Independent Trucker

An independent trucker is a self-employed truck driver who operates their own trucking business, often contracting with companies to transport goods.

Owner-Operator

An individual who owns and operates their own business or equipment, particularly common in the trucking and logistics industries.