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For numbers 19-20, refer to the situation below: The following table lists the numbers of violent crimes reported to police on randomly selected days for this rear. The data are taken from three large cities of about the same size. City A City B City c 1. Which test statistics used to test a hypothesis concerning the means of three or more populations, the technique is called analysis of variance? A. z-test C. F-Test B. T-Test D. r-Test _ 2. If the F-computed value is 2.930 and the critical value is 2.840, what will be the decision? A. Reject the null hypothesis. Using the 5% significance level, test the null hypothesis that the mean number of violent crimes reported per Iternative hypothesis day is the same for each of these three cities. D. Do not reject the null hypothesis _ 9. Calculate the degree of freedom for the test. _ 3. What does ANOVA stands for? A. 15.2 C. 3,15 3. 2,15 . 15,3 Analysis of value An 5. Analysis of Variantrib 10. What is the computed value of F-Test? " Assessment of vulnerability . 1.329 C. 1.529 B. 1.429 D. 1.629 4. To determine whether the test statistic of ANOVA is statistically significant, it can be compared to a 11. Which of the following is used to measure the strength of the association between bivariate data? critical value. What two pieces of information are needed to determine the critical value? A. Diagram B. Pearson - b C. Pearson's correlation coefficient D. z - value . Sample size, number of groups. 12. Which of the following is the Pearson r formula? C. Expected frequency, obtained frequency. A. r= - n(Exy)+(x)(y) C. r= -(m-CoCy D. MSB , MSW B. r= - (xy)+(x)(y) "(Exy)-En)Ey) 5. How many levels must there be in one independent variable for an ANOVA to be used? A. 1 C. 3 B. 2 13. In the formula of Pearson r, what is the meaning of (Ex) (Ey)? A. sum of x and y-values 6. What must you include when reporting an ANOVA? A. Degree of freedom C. F statistics D. product of the paired values x and Means D. All of these 14. In the formula of Pearson r, what is the meaning of (Ey)2? _ 7. Which is the correct order of steps for calculating and interpreting a one-way ANOVA? A. sum of y-values Determine SS, Calculate df, Calculate MS, Calculate F, Compare F obtained to F critical 2. sum of square y-values D. the square of the sum of y-values C. Calculate F, determine SSS, Calculate df, Compare F obtained to F critical Calculate T, calculat e T obtained to T critical 15. In computing Pearson r, which of the following is the next step after obtaining 8. Which is the formula to calculate the mean square or variance between samples (MSB)? the data of the s p complete the table. A. k- C. 235 C. Substitute all the s D. Simplify and compute for the value of r. B. D. SSW . 1srs-1 16. Which of the following is the range of the correlation coefficient (r)? B. -1 srs1 C. 1212- 1 D. -12121 17. Which of the following statements about correlation is NOT correct? orrelation is strong at 1 and weak. at -1. B. Correlation is a number from -1 and 1. correlation determines the direction between two variables. D. Correlation can either be positive or negative. For numbers 18-20, refer to the situation below: A Mathematics teacher is interested in finding out if critical and scientific thinking exists among students good in Mathematics and Science. Thus, he conducted a research and gathered scores of his respondents in Math and Science. The following data have been obtained: Score in Score in Mathematics Science 8. What is the computed Pearson's sample correlation coefficient? A. 0.90 B. 0.80 C. 0.78 D. 0.52 19. What is the strength of correlation? A. no correlation B. perfect positive C. strong positive D. weak positive 20. Based on the findings, which of the following best describes the result? A. There is no correlation between the performance of the students in B. A student who is good in Mathematics is not good in Science Astudent who is not good in Mathematics is good in Science D. A student who is good in Mathematics is also good in Science
