Rudy Has Been on a Strict Diet of 1000 Calories

question 49

Multiple Choice

Rudy has been on a strict diet of 1000 calories per day for the last six weeks.He lost considerably more weight in the first three weeks of his diet than in the last three because

• A) his metabolic rate has decreased.
• B) his set point has increased.
• C) lean tissue is maintained by fewer calories than is fat tissue.
• D) his fat cells have begun to secrete elevated levels of leptin.

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Definitions:

Null Hypothesis

A default statement suggesting that there is no statistical significance between the specified datasets, or no effect of a certain variable.

T-statistic

A type of statistic used in hypothesis testing, calculated as the difference between an observed sample mean and a hypothesized population mean, divided by the standard error of the mean.

Level of Significance

The level of significance is a threshold set by the researcher to determine the cutoff at which the null hypothesis can be rejected, commonly represented by alpha (α).

T-statistic

A statistical measure used to analyze the difference between two group means in relation to the variance observed within the groups.