1:28 PM Wed Apr 21* 76%88 QStats Exam•..Untitled Notebook (1)Stats ExamSTA 2023 EC Regression1. A doctor wanted to determine whether there is a relationbetween a males age and his HDL cholesterol. He randomlyselected 17 of his patients and determined their HDL levels. Heobtained the following data.Age, x HDL, y38574254463432565535524061426138264738446662305351362745523849553928a) Calculate rb) Calculate the least regression linec) Test whether there is a linear relationship between age andHDL. Let a=0.05d) Construct a 95% Confidence Interval for the slope of theregression line| 1:28 PM Wed Apr 21* 75%88 QStats Exam•..Untitled Notebook (1)Stats Exame) Construct a 95% Confidence Interval for the predicted meanage for a 75 year old male. Let x*=75f) Construct a 95% Prediction Interval for the predicted age for a75 old male. Let x*=75.year2. As concrete cures it gains strength. The following datarepresents the 7 day and 28 day strength (in pounds per squareinch) of a certain type of concrete.7 Day Strength, x 28 Day Strength, y23004070339052202430464028904620333048502480412033805020266048902620419033404630a) Calculate rb) Calculate the least regression linec) Test whether there is a linear relationship between 7-daystrength and 28-day strength. Let a=0.05d) Construct a 95% Confidence Interval for the slope of the

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Description: 1:28 PM Wed Apr 21* 76%88 QStats Exam•..Untitled Notebook (1)Stats ExamSTA 2023 EC Regression1. A doctor wanted to determine whether there is a relationbetween a males age and his HDL cholesterol. He randomlyselected 17 of his patients and determine

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STA 2023 EC Regression 1. A doctor wanted to determine whether there is a relation between a males age and his HDL cholesterol. He randomly selected 17 of his patients and determined their HDL levels. He obtained the following data. Age, x HDL, y 38 57 42 54 46 34 32 56 55 35 52 40 61 42 61 38 26 47 38 44 66 62 30 53 51 36 27 45 52 38 49 55 39 28 a) Calculate r b) Calculate the least regression line c) Test whether there is a linear relationship between age and HDL. Let a=0.05

STA 2023 EC Regression 1. A doctor wanted to determine whether there is a relation between a males age and his HDL cholesterol. He randomly selected 17 of his patients and determined their HDL levels. He obtained the following data. Age, x HDL, y 38 57 42 54 46 34 32 56 55 35 52 40 61 42 61 38 26 47 38 44 66 62 30 53 51 36 27 45 52 38 49 55 39 28 a) Calculate r b) Calculate the least regression line c) Test whether there is a linear relationship between age and HDL. Let a=0.05

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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