HW4Xi4611316Please write your answers and your work on a separate sheet.Based on Chapter 3 (pp. 142-148)1) Compute and interpret the sample correlation coefficient for the five observations taken for twovariables below.X₁611152) Compute and interpret the sample correlation coefficient for the five observations taken for twovariables below.2127Based on Chapter 14Yi5050406030Xi31262014Yi69617123) Consider the following data.MN 260Mbi-s (xi-xi-g={(x1-x)²Yi5540551015a. Develop the estimated regression equation by computing the values of b₁ and bo.b. Use the estimated regression equation to predict the value of y when x = 10.

As per bartleby guidelines we can solve only first question and 3 subparts if any and rest can be…

Answered: 1) Compute and interpret the sample…

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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Subject Extroversion Neuroticism 1 43 49 2 46 53 3 48 67 4 48 57 5 48 56 6 50 48 7 51 60 8 51 41 9 53 51 10 58 47 11 62 41 12 63 51 13 63 30 14 63 28 15 67 55 16 67 47 17 67 39 7. What is the standard error of the correlation coefficient for the association of extroversion and neuroticism in personalities.xls? 8. Carry out a formal t-test for the association between extroversion and neuroticism in personalities.xls. H0: The population correlation coefficient is 0. HA: The population correlation coefficient is not 0. What is the value of the t-statistic corresponding to this test? (Report the absolute value. The t-distribution is symmetric, thus it is easier to compare the absolute value of the t-statistic with the positive values in statistical table C). 9. Carry out a formal t-test for the association between extroversion and neuroticism in personalities.xls. H0: The population correlation coefficient is 0. HA: The population correlation coefficient is not 0. What is the critical…
The owner of a chain of fruit shakes stores would like to study the correlation between atmospheric temperature and sales during the summer season. A random sample of 12 days is selected with the results given as follows: Day 1 2 3 4 5 6 7 8 9 10 11 12 Temperature in (F) 79 76 78 84 90 83 93 94 97 85 88 82 Total Sales(Units) 147 143 147 168 206 155 192 211 209 187 200 150 Does it appear there is a relationship between atmospheric temperature and sales at .05 level of significance.
Example 3. Calculate Correlation Coefficient from the data given below by direct method i.e., without taking deviations of items from actual or assumed mean Roll No. of Students : Marks in Maths : Marks in Stat : 2 3 4. 48 35 17 23 47 45 20 40 25 45.
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1) Compute and interpret the sample correlation coefficient for the five observations taken for two variables below. X₁ 4 6 11 3 16 Y₁ 50 50 40 60 30