11. Outlier Refer to the accompanying Minitab-generated scatterplot.

a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a correlation between x and y.

b. After identifying the 10 pairs of coordinates corresponding to the 10 points, find the value of the correlation coefficient r and determine whether there is a linear correlation.

c. Now remove the point with coordinates (10, 10) and repeat parts (a) and (b).

d. What do you conclude about the possible effect from a single pair of values?

C Chegg eReader E chapter 10 hw not - Google Docs _ X. *Course Hero A X C chegg.com/reader/9780134464244/510/ To . .. Reading list Search keywords Q . . . 80 used to obtain the XLSTAT results shown here. Is there sufficient evidence to support the claim Data that there is a linear correlation between weights of discarded paper and glass? 6BSC XLSTAT 4. Probability 131 Correlation matrix (Pearson): 7BSC Variables Paper Glass Textbook 0.117 solutions 8BSC > 5. Discrete Probability Distributions 184 8. Cereal Killers 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 > 6. Normal Probability Distributions 226 results are shown here. Is there sufficient evidence to support the claim that there is a linear cor- relation between sugar and calories in a gram of cereal? Explain TI-83/84 Plus 7. Estimating Parameters and Determining 297 NORMAL FLOAT AUTO REAL RADIAN HP Q & A Sample Sizes LinRealTest By0 and PRO 35 -188.3423729 > 8. Hypothesis Testing 356 b=5. 789830508 r=. 7654038409 > 9. Inferences from Two Samples 414 Explore! Exercises 9 and 10 provide two data sets from "Graphs in Statistical Analysis," by F. J. Anscombe, the American Statistician, Vol. 27. For each exercise, 10. Correlation and Regression 468 11. Goodness-of-Fit and Contingency 533 Tables 12. Analysis of Variance 566 484 of 803 VC Chegg eReader chapter 10 hw not - Google Docs _ X. *Course Hero A X C chegg.com/reader/9780134464244/511/ To . .. Reading list Search keywords Q W . . . 80 Data 11BSC 10-1 Correlation 485 4. Probability 131 12BSC c. Now remove the point with coordinates (10, 10) and repeat parts (a) and (b). Textbook d. What do you conclude about the possible effect from a single pair of values? solutions 13BSC > 5. Discrete Probability Distributions 184 28BSC > 6. Normal Probability Distributions 226 29BSC 7. Estimating Parameters and Determining 297 Q & A Sample Sizes > 8. Hypothesis Testing 356 12. Clusters Refer to the following Minitab-generated scatterplot. The four points in the lower left corner are measurements from women, and the four points in the upper right corner are from men. > 9. Inferences from Two Samples 414 a. Examine the pattern of the four points in the lower left corner (from women) only, and sub- jectively determine whether there appears to be a correlation between x and y for women. b. Examine the pattern of the four points in the upper right corner (from men) only, and subjec 10. Correlation and Regression 468 11. Goodness-of-Fit and Contingency 533 Testing for a Linear Correlation. In Exercises 13-28, construct a scatterplot, and find Tables the value of the linear correlation coefficient r. Also find the P-value or the critical values 12. Analysis of Variance 566 485 of 803 V