For a given set of x and y data values, assume that the regression model assumptions are valid and that a 90% confidence interval for ₁ is given by (-2.2, -0.1).Which of the following statements are true?i) At a = 0.10, there is a significant linear relationship between x and y.ii) In the scatterplot of x and y, the values of y tend to decrease as the values of x increase.iii) Based on this confidence interval, we would reject the null hypothesis of no linear relationship at any significance level a ≤ 0.1.Select one:a. i)O b. i) and ii)O c. ii)d. i), ii), and iii)

Given that the 90% confidence interval for β1 is (-2.2, -0.1)

Answered: For a given set of x and y data values,…

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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A study of king penguins looked for a relationship between how deep the penguins dive to seek food and how long they stay underwater. For all but the shallowest dives, there is a linear relationship that is different for different penguins. The study report gives a scatterplot for one penguin titled, “The relation of dive duration (DD) to depth (D).” Duration DD is measured in minutes, and depth D is in meters. The report then says, “The regression equation for this bird is, DD=2.69+0.0138D.is, DD=2.69+0.0138D.” What is the slope of the regression line? Give your answer to four decimal places.What does this slope says about this penguin's dives ?
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