Researcher study how the average weight of children changes
Course:- Other Subject
Reference No.:- EM13320464

Assignment Help
Expertsmind Rated 4.9 / 5 based on 47215 reviews.
Review Site
Assignment Help >> Other Subject

A researcher wishes to study how the average weight Y (in kilograms) of children changes during the first year of life. He plots these averages versus the age X (in months) and decides to fit a least-squares regression line to the data with X as the explanatory variable and Y as the response variable. He computes the following quantities.

r = correlation between X and Y = 0.9 J = mean of the values of X = 6.5

M = mean of the values of Y = 6.6 Sx = standard deviation of the values of X = 3.6

Sy = standard deviation of the values of Y = 1.2

The slope of the least-squares line is

Put your comment

Ask Question & Get Answers from Experts
Browse some more (Other Subject) Materials
Develop a trade show floor plan for a show with 100 exhibit booths, using Floorplan Genie or AllSeated. You must include perimeter booths, peninsula booths and island booth
The studies must be from a variety of credible, high-quality sources and you must determine probable accuracy by questioning sources of data, the limitations of resources, a
Compare and contrast the three types of stratification systems. Identify and elaborate on some factors in the status attainment process that may limit or facilitate upward mo
Prepare a 5 to 10 minute presentation on "Why University of Texas at El Paso?" Imagine that you are presenting at a senior assembly at El Dorado High School and you are tal
Write a paper on Tchaikovsky and Women in Art. Compare and contrast these two depictions of women, and comment on any general tendencies that you detect among artists of that
You are an interface coordinator for the Directorate of National Intelligence. You have been asked to brief a half dozen freshman senators that will soon be members of the N
There are several different types of racism. One type of racism is front-stage racism which is also known as public racism (name-calling, scapegoating, violence, etc). In ou
Explain how Pearl's approach to optimizing sales at Modern Shed combines decision making with problem solving. To what extent can the model of decision making in Figure be a