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

question 17

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 critical value for a one-tailed test of the null hypothesis of no difference at the ? = 0.05 level of significance is______ .

Comprehend the curriculum requirement and fields of practice in social work education.

Distinguish between micro, mezzo, and macro levels in social work practice.

Describe the process involved in policy practice, including the implementation of changes in legislative, agency, and community settings.

Apply critical thinking skills in the evaluation of social work practices and theories.

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Definitions:

Purely Competitive Firm

Describes a business that operates in a market where no single company can influence prices, due to the presence of many sellers offering identical products.

Output

The quantity of goods or services produced in a certain period of time by a person, machine, or industry.

Price Taker

A market participant who has no influence over the market price and must accept the prevailing market price for its products or services.