2. Researchers wanted to study physical activity in children, so they gave 74 randomlychosen children a "FitBit" to record how many steps they took each day. Additionally,the scientists recorded each child's Body Mass Index (BMI) and grade in school. Gradewas coded as middle or high school. The results of their analysis are below:Table 1 - Factors Contributing to Daily Steps TakenInterceptBMIGrade_middleEstimate6,350.2-137.51,302.4SE316.154.9588.3a. Calculate the test statistics for each predictor in the model and determine whichare significant (you don't have to write full conclusion for each as long as youindicate which are significant). Given: critical value = 1.99b. Interpret the estimate of Grade_middle in context.c. Suppose a middle-school student with a BMI of 20 took 6,000 steps in a day.Calculate this student's residual.

Given information:k= 2 independent variables n= 74 observations critical value = 1.99

Answered: to study physical activity in childr so…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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