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

question 158

Short Answer

Instruction 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 kilograms with the standard deviation of differences computed as 6.0 kilograms.
-Referring to Instruction 10-7,the t test should be __________-tailed.

Understand the concept of minimum viable product (MVP) and its importance in the entrepreneurial process.

Recognize the role of experimentation in validating business ideas and products.

Understand the use of pre-selling as a method to validate product demand before full development.

Acknowledge the importance of customer feedback in product development and the iterative process.

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ActionEvent

An object that represents an action event in Java, such as pressing a button or entering text in a text field.

Method

A block of code designed to perform a specific task, associated with an object or class in programming.

Application Program

A computer software designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user.

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A graphical control element of a user interface that displays contents and allows user interaction through graphical icons and visual indicators.