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

question 91

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 computed t statistic is____ .

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Definitions:

Working Poor

Individuals who have employment but whose income levels fall below a poverty line, typically due to low-paying jobs.

Minimum Wage

The lowest legal hourly pay for workers, set by government legislation.

Poverty Line

A defined income threshold below which an individual is considered to be living in poverty, based on the minimum level of income deemed necessary to achieve an adequate standard of living.

Hispanics

People residing in the United States who are of Spanish-speaking origin or ancestry, including individuals from Latin American countries.