X2X3The table to the right contains observed values and expected values in parenthesesfor two categorical variables, X and Y, where variable X has three categories andvariable Y has two categories. Use the table to complete parts (a) and (b) below.304145(30.89) (41.87)(43.24)152018Y2(14.11)(19.13)(19.76)Click the icon to view the Chi-Square table of critical values.(a) Compute the value of the chi-square test statistic.X6 =| (Round to three decimal places as needed.)%D(b) Test the hypothesis that X and Y are independent at the a = 0.05 level of significance.O A. Ho: The Y category and X category are dependent.H,: The Y category and X category are independent.O B. Ho: The Y category and X category are independent.H,: The Y category and X category are dependent.C. Ho: Hx = Ex and Hy = EyH4: Hy #Ex or Hy # EyD. Ho: The Y category and X category have equal proportions.H,: The proportions are not equal.What range of P-values does the test statistic correspond to?The P-value isShould the null hypothesis be rejected?O A. Yes, reject Ho. There is not sufficient evidence at the a = 0.05 level of significance to conclude that X and Y aredependent because the P-value < a.O B. No, do not reject Ho. There is sufficient evidence at the a = 0.05 level of significance to conclude that X and Y aredependent because the P-value < a.O C. No, do not reject Ho. There is not sufficient evidence at the a =0.05 level of significance to conclude that X and Yare dependent because the P-value > a.

Answered: Image /qna-images/answer/3628c640-d8bf-44eb-a72d-aacc62960e98.jpg

Answered: (a) Compute the value of the chi-square…

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

A sample of 157 men was taken and it was found that 41 owned cats.A sample of 153 women was taken and it was found that 69 owned cats.Test the claim that the proportion of men who own cats is smaller than than the proportion of women who own cats at the .025 significance level.Claim: Select an answer u 1 > u 2 p 1 ≠ p 2 p 1 < p 2 p 1 = p 2 u 1 < u 2 u 1 ≠ u 2 u 1 ≥ u 2 u 1 = u 2 u 1 ≤ u 2 p 1 ≥ p 2 p 1 ≤ p 2 p 1 > p 2 which corresponds to Select an answer H1: p 1 > p 2 H0: p 1 = p 2 H1: u 1 > u 2 H1: u 1 ≠ u 2 H0: p 1 ≠ p 2 H1: p 1 < p 2 H0: u 1 ≤ u 2 H0: p 1 ≤ p 2 H1: p 1 ≠ p 2 H1: u 1 < u 2 Opposite: Select an answer p 1 ≠ p 2 u 1 < u 2 u 1 ≥ u 2 p 1 < p 2 p 1 = p 2 u 1 ≤ u 2 u 1 = u 2 u 1 ≠ u 2 p 1 > p 2 p 1 ≤ p 2 u 1 > u 2 p 1 ≥ p 2 which corresponds to Select an answer H1: p 1 ≠ p 2 H0: p 1 ≤ p 2 H1: p 1 < p 2 H1: u 1 ≤ u 2 H0: u 1 > u 2 H0: u 1 ≠ u 2 H1: u 1 = u 2 H1: u 1 ≥ u 2 H0: p 1 ≠ p 2 H0: p 1 = p 2 H1: p 1 > p 2 The test is:…
5. Inference.Consider the sample of students at the University of Reading in Table 3.Table 3: Hours spent studying per weekStudent ID. Hours spent studyingID1. 1ID2. 2ID3. 3ID4. 5ID5. 4ID6. 5ID7. 7ID8. 7ID9. 12ID10 5ID11. 7ID12 7ID13 15ID14. 0ID15. 3ID16. 4ID17. 4ID18 . 0ID19. 5ID20. 7ID21. 7ID22 . 13ID23. 7ID24. 9 a) Consider the possibility of using this sample to make…
9) A hypothesis test is to be conducted using the claim that the mean hourly wage of employess in a large company is at least $21. What are the null and alternative hypothesis? pick one a H 0 : 21 vs H a : < 21 b H 0 : μ ≤ 21 vs H a : μ > 21 c H 0 : μ 21 vs H a : μ < 21 d H 0 : p 21 vs H a : p < 2
Which of the following is NOT true about P-values in hypothesis testing? ..... Choose the correct answer below. A. If the P is low, the null must go. B. The P-value separates the critical region from the values that do not lead to rejection of the null hypothesis. C. If the P is high, the null will fly. O D. The P-value is an area.
16. Researchers claim that 60 tissues are the average number of the tissues a person uses during the course of a flue. The company who makes Kleenex brand tissues that thinks that fever of the tissues are needed. What are their null and alternative hynothesis 17. A randomly selected ample of 1,000 college students was asked whether they had ever drunk alcohol. Sixteen percent of the 1000 students surveyed said they had. Which one of the following statements about the number 0.16 is correct? A. Itis a sample proportion B. It is a population proportion C. It is a margin error D. It is a randomly chosen number 18. A random sample of 100 voters in a community produced 59 voters in faxour of candidate A. The observed value of the test statistics for testing the null hypothesis Ho pi = 0.5 versus the alternative hypothesis Ha pi is not equal to 0.5. a (0.05) А. 1.80 В. 1.90 С. 1.83 D. 1.28
Give situation (one each) by which the different inferential statistics can be used. State the corresponding null and alternative hypothesis. 1. t-test of significant difference ●Between sample & population means ●Between independent samples ●Between dependent samples 2. t-test of significant relationship 3. Z-test of significant of ø 4. Z-test of significance of population peoportions
Persons who visit the restroom of a certain fast-food outlet were asked to state their opinion of the quality of the restroom facilities, The following tables show the responses rom a sample of 100 persons. Gender of Respondents TOTALS MALE FEMALE Quality of facilties Above Average 8 7 15 Average 26 24 50 Below Average 7 28 35 Totals 41 59 100 A X2 test is carried out to determine whether there is an association between the gender of persons and their opinion.i) State appropriate null and alternative hypotheses ii) Determine the critical region of the test at…
Q.7
We want to know if the average rating of attractiveness (1=homely, 5=stunning) of a typical person differs depending on the state they are located in. We believe that there will be significant differences in the average attractiveness of the people at each of the four states we examine. 1) Report (in words or statistical notation), our null and alternative hypothesis: Provided are the data we collected from four different states: OR, WA, ID, and CA (see below): OR WA ID CA X bar 3.01 3.07 2.88 3.7 SD 0.42 0.60 0.46 0.30 n 10 10 10 9 SS 92.19 97.47 84.84 123.95 2) Given that we have more than two samples, we need to conduct a one-way ANOVA. Conduct the test in order to calculate the F-statistic addressing our hypothesis. Be sure to calculate the grand mean and the between-groups & within-groups mean-squares first (also don’t forget to round to 2 decimal places and report the formulas!!): 3.) Calculate the degrees…
a) Interpret the coefficient on pfmeals in Model 2 (mathematically and statistically). b) is the coefficient on pfmeals in Model 1 biased compared to the coefficient on pfmeals in Model 2. If so, by how much? c) What 2 conditions would need to be true for bias of pfmeals to exist? Use only the information from Models 1 and 2 above to answer this question.
2. Two fair dice are thrown. Let U be the minimum score of the two dice and let V be the maximum score of the two dice. a. Display f(u,v) in a table. b. Find the covariance and correlation between U and V.
I need help.

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