Question

un italill 54% 10:02 PM monica salgado &1/10719 10 02 PM Winter2018 RG Math 1342 AB CRN15684-5wks : Fxam4-over Ch 8, 9, 10 (GRADED) 00 35 45 t This Question: 1 pt 4 12 of 15 (15 complete) This Test: 15 pts possi Question Help Refer to the accompanying scatterplot,a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a strong correlation between x and y. b. Find the value of the correlation coefficient r and determine whether there is a inear correlation e. Remove the point with coordnates (2,10) and find the correlation coefficient r and determine whether there is a fnear correlation d. What do you conclude about the possible offect from a single pair of values? ation coefsient a Do the data points appear to have a strong linear correlation? O No b. What is the value of the correlation coefficient for all 10 data ponts? r(Simplify your anewer Round to three decima places as needed.) ls there a linear correlation between x and y? Une α-0.05 e A. Yes because the correlation ooefficient is in the critical region. B. No. because the correlation coe icient is in the crtical region C Yes because the corelation coofficient is not in the ertical region D. No because the correlation coeficiet is not in the oritical region c. What is the correlation coefficient when the point (2.10) is excluded to three decimal places as needed Is there n inear correlation between x nnd y? Use α 0.05 Yes, because the cortelation coeficient is in the oritical region. B. No, because the correlation coemeent is not in the critical region O c. Yes because the correlation coeficient is not in the crtical region. No, because the correlation coefficient is in the critical region. O A 。D. d. What do you conclude about the possible eftect from a ningle pair of values? A single pair of values does not change the conclusion O The effect from a single pair of values can change the conclusion.

Answer 1

Solurtions a.) Yes 1oo g 10 4 2 8 3 64 16 0 9 2188 ID 3 30 loo 10 오 to ID 83 28 182 39 142 tOX 182 - 83x28 1820-232L 7390-6881]「142D-784」 (5o (6367 ㄚ二1-0. 8928 yes, becauge 寸he correlation coefficent is inte critHcal vegion e. the Cofselation coefPcient is not in the critcal reglon. d.) The effeet from a sîngle par of- value s the conclusi'on.