Looking at Four Different Diets,a Researcher Randomly Assigned 20 Equally $$\bar { x }$$

question 63

Essay

Looking at four different diets,a researcher randomly assigned 20 equally overweight adults into each of the four diets.The response was weight loss,in kilograms.The MSE = 31.4 and $$\bar { x }$$ = 14.25, $$\overline { x _ { 1 } } = 10.6$$ , $$\bar { x } _ { 2 } = 12.8$$ , $$\bar { x } _ { 3 } = 12.4$$ , $$\bar { x } _ { 4 } = 21.2$$ .
-Compute a 95% confidence interval for the second group (diet)mean

---

Definitions:

Köhler Effect

A phenomenon in social psychology where less capable members of a group are motivated to increase their effort on a task to match the performance levels of more capable members.

Productive Individuals

People who are consistently able to achieve high output within the expected timeframes, contributing significantly to their teams or projects.

Dominant Responses

The most common or likely reactions individuals exhibit in a given situation, often influenced by past experiences, instincts, or social norms.

Nondominant Responses

Reactions or actions that are not the most common or typical in a given situation, often requiring more cognitive effort.