Test for a negative correlation using the sample correlation r = -0.43 and the sample size n = 18.State the null and alternative hypotheses.:: µ1:: p:: P1:: P2:: 0:: <:: >:: x:: x2PiP2:: rvs Ha:IHo:::::::II Find the test statistic.Round your answer to two decimal places.t =iFind the p-value.Round your answer to three decimal places.The p-value is iWhat is the conclusion, using a 5 % significance level?O Ho.Is the correlation significant?<>

Answered: Test for a negative correlation using…

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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The lowest level of significance to reject the null hypothesis of no linear association between blood pressure and age is: OA: 0.003 OB: 0.05 OC: 0.0002 OD: 0.0001 OE: 0.04
A coffee-dispensing machine is supposed to deliver 8 ounces of liquid into each paper cup, but a consumer believes that the actual mean amount is less. The consumer obtained a sample of 49 cups of the dispensed liquid with average of 7.75 ounces. If the sample variance of the dispensed liquid delivered per cup is 0.81 ounces, and α=0.05, the appropriate decision is ________. Question 6Select one: a. reject the 8-ounces claim b. reduce the sample size c. increase the sample size d. fail to reject the 8-ounces claim
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shix
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Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using a = 0.05. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals? Overhead Width Weight Click here to view a table of critical values for the correlation coefficient. n 300 Aweight (kg) Q 100+ 7 width (cm) 10 Q 7.1 111 7.7 172 9.6 239 Aweight (kg) 300+ 100+ The linear correlation coefficient is r= (Round to three decimal places as needed.) 9.4 204 + width (cm) 10 8.6 196 Q 8.1 183 Aweight (kg) 300- 100 7 width (cm) 10 Q Aweight (kg) 300- 100+ width (cm) 10 Q
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Step 1 of 3. State the null and alternative hypotheses for the test. Step 2 of 3. Compute the value of the test statistic. Round your answer to three decimal places Step 3 of 3. Draw a conclusion and interpret the decision.
Which combination would lead you to Fail to Reject H0? ANOVA: Fobt = 3.61 Fcrit = 2.55 2-tailed t-test: tobt = 2.36 tcrit = 1.89 Correlation: robt = 0.68 rcrit = 0.64 Chi-Square GOF: χ2obt = 3.24 χ2crit = 4.25

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Test for a negative correlation using the sample correlationr = -0.43 and the sample size n = 18. State the null and alternative hypotheses. :: µ1 :: µ2 : Pi : P2 :: 0 :: p :: = :: < :: > :: x :: x1 :: x2 :: p :: P1 :: P2 : r Ho: : vs Ha: