Let to be a specific value of t. Use the table of critical values of t below to find to-values such that following statements are true. a. P (tzto) = .025, where df = 11 b. P (tzto) = .01, where df = 18 c. P (tsto) = .005, where df = 6 d. P (tsto) = = .05, where df = 13 Click the icon to view the table of critical values of t. a. The value of to is 2.201. b. The value of to is 2.552. c. The value of to is

Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs? Let x be the magnitude of an earthquake (on the Richter scale), and let y be the depth (in kilometers) of the quake below the surface at the epicenter. x 3.2 4.0 3.3 4.5 2.6 3.2 3.4 y 5.2 10.3 11.2 10.0 7.9 3.9 5.5 Use a calculator to verify that Σx = 24.2, Σx2 = 85.94, Σy = 54.0, Σy2 = 466.44 and Σxy = 191.52. Compute r. (Round your answer to four decimal places.)

P(1.15 < Z < 2.77) =

The record of the speed of the runner during the first 2 seconds of a race is given in the following table: 1. Which of the following represent the Midpoint Rule to estimate the distance the runner covered during those 2 seconds? OA. [2(4.67) + 2(8.86) + 10.22] OB. [02(4.67) + 2(7.43) + 2(8.86) +2(9.73) + 10.22] OC. [0+2(4.67) +2(7.43) + 2(8.86) +2(9.73) + 10.22] OD. None of these OE. 0.4[0+2(4.67) +2(7.43) +2(8.86) + 2(9.73) + 10.22] t(s) 0 v (ft/s) 0 0.4 4.67 0.8 1.2 1.6 7.43 2.0 8.86 9.73 10.22

Complete the following worksheet and then use it to calculate the coefficient of determination. (ŷ; - y)² (Yi - y)² 2.208 196.000 565.203 2,116.000 432.765 1,156.000 79.477 256.000 797.046 2,916.000 178.837 196.000 973.690 676.000 1,856.834 576.000 2,121.800 1,296.000 35.331 256.000 i 1 2 3 4 5 6 7 8 9 Ti Yi y 15 160 175.486 13.5 220 197.774 16.5 140 153.197 14.5 190 182.915 17 120 145.768 16 160 160.627 13 200 205.204 18 150 130.909 12 210 220.063 10 15.5 190 168.056 Total The coefficient of determination (²) is According to the regression model, which of the following is the best estimate together with the 95 percent prediction interval of paint sales (in thousands of gallons) in a sales region where the selling price is $12.50? O 212.620 + 2(3.190) O 409.370 + 2(3.190) O212.620 2(18.017) O 409.370 = 2(18.017) What is the price elasticity of demand at a selling price of $12.50? O -0.56 -0.06 O -0.87

For each of the following variables, indicate whether it is qualitative or quantitative. For quantitative variables, further categorize them into either discrete or continuous type.e. Heightf. Blood typeg. Per capita incomeh. Household sizei. Mid-upper arm circumference (in cm)

11. Find X. (G.8A-S)

Please show formulas thank tou and on TI-84 calculator A test of H0:ρ=0H0:ρ=0  versus Ha:ρ≠0Ha:ρ≠0  determines that there is evidence of a linear relationship between the variables x and y at the 10% level.  Which of the following is a possible p-value for this test?   The p-value could be any of 0.06, 0.11, 0.82, or 1.15. 0.06 0.11 1.15 0.82 In a sample of 390 people attending a concert, 60% stated that the venue was a good location for that type of concert.  What p-value is calculated when testing  Ho:p≤0.65Ho:p≤0.65  versus p>0.65p>0.65 ?   0.0194 0.0219 0.9808 0.6000 0.0192 A hypothesis test to test the claim about a population mean in which the alternative hypothesis is Ha:μ≠225Ha:μ≠225 is conducted.  A random sample was collected with the results of ¯x=200x¯=200 and s=54.2s=54.2 for a sample of size 14. What are the critical values for this test if the significance level is 5%?   ±2.145 ±1.726 ±2.160 ±1771 ±1.96