Anyone who has been outdoors on a summer evening has probably heard crickets. Did you know that it is possible to use the cricket as a thermometer? Crickets tend to chirp more frequently as temperatures increase. This phenomenon was studied in detail by George W. Pierce, a physics professor at Harvard. In the following data, x is a random variable representing chirps per second and y is a random variable representing temperature (°F).I need help with (b) (c) (d) (e) and (f) (b) Verify the given sums Ex, Ey, Ex2, Ey2, Exy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.)Ex =Ey =Ex2 -Ey2 -Exy =(c) Find x, and y. Then find the equation of the least-squares line ý = a + bx. (Round your answer to four decimal places.)x =y =(d) Graph the least-squares line. Be sure to plot the point (x, y) as a point on the line.yy120120100100808060604040202051015205101520120120100100808060604040202051015205101520(e) Find the value of the coefficient of determination 2. What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained? (Round your answer for r2 to four decimal places. Round your answers for the percentages to two decimalplace.)2 =explained%unexplained(f) What is the predicted temperature hen x = 17.8 chirps per second? (Round your answer to two decimal places.)oF Anyone who has been outdoors on a summer evening has probably heard crickets. Did you know that it is possible to use the cricket as a thermometer? Crickets tend to chirp more frequently as temperatures increase. This phenomenon was studied in detail by GeorgeW. Pierce, a physics professor at Harvard. In the following data, x is a random variable representing chirps per second and y is a random variable representing temperature (°F).19.215.020.417.816.515.514.717.1y87.873.493.184.782.275.269.782.015.416.215.017.216.017.014.4y69.483.379.682.680.683.576.3n USE SALTComplete parts (a) through (e), given Ex = 247.4, Ey = 1203.4, Ex² = 4120.44, Ey² = 97,136.54, Exy = 19,983.11, and rx 0.8778.(a) Draw a scatter diagram displaying the data.Graph Layers100Clear AllAfter you add an object to the graph you96Deletecan use Graph Layers to view and edit itsproperties.90Fill8580NoSolution757066O Help13141516192021171822WebAssign. Graphing Tool

Name: Anyone who has been outdoors on a summer evening has probably heard cr
Uploaded: 2024-03-20T07:06:41.000Z
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Description: Anyone who has been outdoors on a summer evening has probably heard crickets. Did you know that it is possible to use the cricket as a thermometer? Crickets tend to chirp more frequently as temperatures increase. This phenomenon was studied in detail