Seperate paper Essay Example | Topics and Well Written Essays - 1500 words

Seperate write up - Essay Exampletime, 14-year old students who eat French Fries three times per week exit gain at least two more pounds than students who eat French Fries twice a week.The 14-year old students in this experiment are samples. Objective of the experiment is to achieve the inferences for the entire population base on analysis of data received upon steering experiments with the samples. The first task is to determine the number of samples required to conduct the experiment. This depends on the task of the experiment. The task of the experiment is to establish a relationship between body lean calories intake from French fries during a fixed period of time. This can be expressed in the mathematical form as Body weight = (Calorie from French fries). Thus, three basic parameters for this experiment are Body weight, Calories, and Time. If, Y = Body weight, X = Calorie, and t = time then the function is Y t = (X) while t is fixed.14-year boys are samples of this experi ment. Each sample is considered as a member of the population. In this experiment, psyche member of the population is considered identical. Since individual members of the population are identical, then characteristics of the population can be derived ground on one specimen. We have selected eight specimens from the following ethnic aggroups White, Black, Hispanic, Asian. Specimen from each ethnic group was selected using probability sampling out of 50 samples from each ethnic group. In selecting specimens, initial weights and high of the specimens were not taken into considerations. Nevertheless, for all specimens both parameters were within very close ranges. We divided each 4 samples in two groups group A, and group B. Each sample group consisted 14-year boys from ethnics background White, Black, Hispanic, Asian.We identified that in that location are two types variables that describe the purpose of the experiment, and verify the result. These variables are controlled variab les, and experimental