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

See similar textbooks

Similar questions

1. Determine the sample regression line relating infant mortality to female literacy and plot it on a new scattergram with the equation and R2 on the scattergram. 2. State the value of the correlation coefficient and coefficient of determination. 3. Does your data support the hypothesis that 1 <0. 4. Compute a 90% confidence interval estimate for 1. (use excel for regression analysis charts.) |-- Infant Mortality Rate 2021 ||- - || Female Literacy Rate 2021 | -|| 95.92 | 2.5 ||| 14.6 ||| 3.8
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
Choose the correct answer and show a hand written solution
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
For a random sample of 10 households, the sample correlation coefficient, r between disposable income (x) and consumer expenditure (y) is found to be 0.7569. You are asked to carry out a relevant hypothesis test to establish whether there is any evidence to suggest that the population correlation coefficient is positive. Given the information above, the value of the test statistic is ______
A coefficient of correlation of 0-2 is derived from a random sample of 625 pairs of Abservations: (i) Is this value significant ? (ii) What are the 95% and 99% confidence limits for the correlation coefficient in the population ?
shix
Conduct a Chi-square test between two appropriate variables of your choice to investigate an association. Obtain column %s, count and expected count in the crosstabs table. Describe what the table tells you about the association in 2-3 sentences, reporting some %s and comparing select observed/expected frequencies in various cells to describe the association. Write out the null and research hypothesis Report the χ² critical value for an alpha level of 0.05. Report χ² obtained/test stat and sig/p value from the output. What is your decision about the hypothesized association? Write out a conclusion about the association. Attach your output including the cross-tabulation table and the chi-square test.
In a trivariate distribution, it 112= 0.7, 113 = 0.61 and 223 = 0.4 find all the multiple correlation coefficients. Also obtain the standard of estimates 01.23 61:23, 02:13 and 53:12 given that: 52= 1:06, 62 = 2.15 and 3= 3.46.
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
Suppose data is obtained from 20 pairs of (x, y) and the sample correlation coefficient is 0.82. (a) Test the hypothesis that Ho: p = 0 against H1 :p + 0 with a = 0.05. (b) Test the hypothesis that Ho: p = 0.22 against H:p + 0.22 with a = 0.05. (c) Construct a 95% two-sided confidence interval for the correlation coefficient. Round your answer to 3 decimal places. i i Statistical Tables and Charts
The amounts of sugar (grams of sugar per gram of cereal) and calories (per gram of cereal) were recorded for a sample of 16 different cereals. TI-83>84 Plus calculator results are shown below. Is there sufficient evidence to support the claim that there is a linear correlation between sugar and calories in a gram of cereal? Explain. LinRegTTest y=a+bxß≠0 or ρ≠0↑df=14a= -188.3423729b=5.789830508s=11.17312583r2=.5858430396r=.7654038409

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

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: