2. Find the best fitting straight line to the following data. (iii) 1 2 27 3 4 14 40 55 68 (iv) x 2 4 1200 900 600 200 110 50
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- Find the equation of the regression line for the following data set. x 1 2 3 y 0 3 4What is the LOD if the deviation of the blank response is 0.001 and has the equation of the line y=0.285x+0.020?A study is made of the relationship between annual production volume of Good A and factory floor area. Table below shows the data from a sample of 10 factories. Factory Factory floor area, X (‘000m2 ) Annual production volume, Y ($‘ 000) 1 40 3.5 2 600 25.0 3 60 4.8 4 72 3.5 5 400 30.0 6 90 5.0 7 200 12.0 8 70 4.5 9 80 5.0 10 84 6.0 Construct a scatter plot.
- In the following data, xx is the average number of hours the student spent working on math each week and yy is the final grade in a math class. hours/weekx Gradey 6 62.4 7 64.8 8 53.2 10 79 13 89.2 14 73.6 17 95.8 18 99.2 18 100 20 100 The line of best fit is y=3.16⋅x+40.31.What is the predicted value for the final grade when a student spends an average of 14 hours each week on math?Grade = Round to 1 decimal place. Submit QuestionQuestion 9Determine the best (according to sum-of-squares-measure) curve y = Aebx , through the data above. Transformed equation ln(y) = ln(A) + bx or Y = a + bx.Determine the best (according to sum-of-squares-measure) curve y = ax2 + bx + c, throughthe data above.
- The MAD for the forecast developed using a weighted 2-year moving average with weights of 0.350.35 and 0.650.65 is what?Given following data set generate dot plot number of text messages sent by 20 students in Mrs. T calculus class 1 3 2 13 32 8 2 6 3 4 1 0 2 2 0 2 1 2 7 2You obtained the following raw data when setting up a Biuret standard curve: BSA (mg/ml) Absorbancy 540nm 0 0.158 1 0.210 2 0.260 3 0.305 4 0.360 5 0.410 6 0.455 7 0.510 8 0.530 9 0.550 10 0.554 What would the quality of the line-fit (R2 value) be if you do not exclude experimental outliers? (Give you answer to 4 decimal places)
- Find the equation of the normal line to the graph of y^2-2x-4y-1=0 at (-2,1).Given the following stem and leaf plot what is the minimum value? 10 0 11 12 13 9 14 0 1 2 3 4 4 4 5 6 7 8 9 15 0 0 0 4 4 6 6 8 9 16 0 1 1 1 5 5 7 8 9 9 17 18 18 20 0In the following data, xx is the average number of hours the student spent working on math each week and yy is the final grade in a math class. hours/weekx Gradey 5 51 5 63 9 60.6 10 77 11 80.4 11 63.4 11 80.4 12 67.8 12 71.8 15 91 The line of best fit is y=2.96⋅x+40.75What is the predicted value for the final grade when a student spends an average of 10 hours each week on math?Grade = Round to 1 decimal place.