Question: 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

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 linear correlation. c. Remove the point with coordinates (10,9) and find the correlation coefficient r and determine whether there is a linear correlation. d. What do you conclude about the possible effect from a single pair ofvalues?

Critical Values for the Correlation Coefficient

nalpha = .05alpha = .01

40.950.99

50.8780.959

60.8110.917

70.7540.875

80.7070.834

90.6660.798

100.6320.765

110.6020.735

120.5760.708

130.5530.684

140.5320.661

150.5140.641

160.4970.623

170.4820.606

180.4680.59

190.4560.575

200.4440.561

250.3960.505

300.3610.463

350.3350.43

400.3120.402

450.2940.378

500.2790.361

600.2540.33

700.2360.305

800.220.286

900.2070.269

1000.1960.256

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