In a population of snakes, researchers caught and measured ten adult females. Their body lengths (X) and weights (Y) are shown in the table below.Length (in cm)64706361626057515954Weight (in g)254296 310284225192190155204179The hypothesis to be tested isНо : р — 0H1 : p + 0at a =0.05 level of significance where pis the population correlation coefficient.Given:The estimated simple linear regression equation is Y = -278 + 8.439X.The sample correlation coefficient is r =0.8356. Which one of the following describes the relationship between X and Y.O For every increase of 1gin the weight, the length increases with 8.356 cm.O For every increase of 1gin the weight, the length increases with 8.439 cm.O For every increase of 1cmin the length, the weight increases with 8.439g.O For every increase of 1cmin the length, the weight increases with 0.8356g.O For every increase of 1cmin the length, the weight increases with 8.356g.O For every increase of 1gin the weight, the length increases with 0.8356cm.

Answered: Which one of the following describes…

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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Unfortunately, arsenic occurs naturally in some ground water.t A mean arsenic level of u = 8.0 parts per billion (ppb) is considered safe for agricultural use. A well in Texas is used to water cotton crops. This well is tested on a regular basis for arsenic. A random sample of 36 tests gave a sample mean of x = 7.1 ppb arsenic, with s = 2.2 ppb. Does this information indicate that the mean level of arsenic in this well is less than 8 ppb? Use a = 0.01. A USE SALT (a) What is the level of significance? State the null and alternate hypotheses. O Họ: u = 8 ppb; H,: u > 8 ppb O Ho: H 8 ppb; H,: u = 8 ppb (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. The standard normal, since the sample size is large and a is unknown. O The Student's t, since the sample size is large and a is known. O The standard normal, since the sample size is large and a is known. The Student's t, since the sample size is large and a is unknown. What is the…
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