what is scatter diagram? In the manufacturing process of a chemical product, the relationship between the raw material purity and the manufacturing time in the extraction ratio is exam
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In the manufacturing process of a chemical product, the relationship between the raw material purity and the manufacturing time in the extraction ratio is examined and the data is given in the table below. Plot a scatter diagram onto graph paper.
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- You give a final attempt to bring the effect of Size back into the equation by forcing the assumption of homoskedasticity onto your estimation. The results are as follows: cost^= = 7,311.17 + 3,985.20 × Reputation – 0.20 × Size (1,985.17) (593.65) (0.07)+ 8,406.79 × Dpriv – 416.38 × Dlibart – 2,376.51 × Dreligion (1,423.59) (1,096.49) (989.23) R 2=0.72, SER = 3,682.02Calculate the t-statistic on the Size coefficient and perform the hypothesis test that its coefficient is zero. Is this test reliable? Explain.1) Find the regression equation and r value Drop Height, y (m) Square of Mean Fall time, t^2 (s^2) 0.100 0.0188 0.300 0.0576 0.500 0.0980 1.000 0.198 1.500 0.305 2.500 0.508We are interested in studying cigarette demand by young adults. Lets consider thefollowing model: ncaj = β0 + β1price + β2age + β3income + u a)Consider now an extension of the model that allow the effect of theprice to differ by age. Holding all other factors fixed, is the effect of price onncaj constant? (This part is theoretical and you do not have to estimate themodel.) b) Now consider the following model:ln(ncaj) = β0 + β1ln(price) + β2age + β3income + u Using the same sample above we have obtained the following results:ln\(ncaj) = 1.17− 0.69price + 0.06age + 0.009income Is there enough evidence to say that an increase of 1000 dollars in income,while keeping price and age fixed, increases cigarette consumption by lessthan 1%?
- t Date Rate 1 1-Apr-04 1.8564 2 2-Apr-04 1.8293 3 5-Apr-04 1.8140 4 6-Apr-04 1.8374 5 7-Apr-04 1.8410 6 8-Apr-04 1.8325 7 9-Apr-04 1.8322 8 12-Apr-04 1.8358 9 13-Apr-04 1.8160 10 14-Apr-04 1.7902 11 15-Apr-04 1.7785 12 16-Apr-04 1.8004 13 19-Apr-04 1.8055 14 20-Apr-04 1.7914 15 21-Apr-04 1.7720 16 22-Apr-04 1.7684 17 23-Apr-04 1.7674 18 26-Apr-04 1.7857 19 27-Apr-04 1.7925 20 28-Apr-04 1.7720 21 29-Apr-04 1.7751 22 30-Apr-04 1.7744 23 3-May-04 1.7720 24 4-May-04 1.7907 25 5-May-04 1.7932 26 6-May-04 1.7941 27 7-May-04 1.7842 28 10-May-04 1.7723 29 11-May-04 1.7544 30 12-May-04 1.7743 31 13-May-04 1.7584 32 14-May-04 1.7572 33 17-May-04 1.7695 34 18-May-04 1.7695 35 19-May-04 1.7827 36 20-May-04 1.7710 37 21-May-04 1.7880 38 24-May-04 1.7908 39 25-May-04 1.8135 40 26-May-04 1.8142 41 27-May-04 1.8369 42 28-May-04 1.8330 (a) Make a line chart and fit an m-period moving average to the exchange rate…The quoted futures price corresponds to a forward rate of 8% per annum with quarterly compounding and actual/360. The parameters for Black’s model are therefore:Fk = 0.08, K=0.08, R=0.075, tk=0.75, SDk=0.15and P(0,tk+1)=e-0.075x1=0.9277 . Use these information to estimate the call price.The table shows the sales revenue from the past 8 quarters. What is the 4-period moving average forecast of the next quarter? Year 1 Year 2 Year 3 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 11 10 9 12 10 7 7 11 ?
- In a certain dynamic measurement application the input(x) – output(y) relationship is given by y=1+(1+x)e-x With what uncertainty must x be determined to yield a relative uncertainty of ±2 percent for y at a value of x = 3,8?(a) Find the value at risk (VaR) for an investment of $400,000 at2%. (That is, find out how low the value of this investment could be if the worst 2% of outcomes are ruled out.) The investment is expected to grow during the year by 10% with SD 35%. Assume a normal model for the change in value. (b) How much smaller would the annual SD of the investment need to become in order to reduce the VaR to $100,000? Assume that the expected growth remains 10%. (a) The value at risk (VaR) for an investment of $400,000 at 2% is _____ (Round to the nearest thousand dollars as needed.) (b) The annual SD of the investment would need to become _______%. (Round to four decimal places as needed.)Life-saving drug: Penicillin is produced by the Penicillin fungus, which is grown in a broth whose sugar content must be carefully controlled. Several samples of broth were taken on three successive days, and the amount of dissolved sugars, in milligrams per milliliter, was measured on each sample. The results were as follows. Day 1: 5.2 5.0 5.4 5.2 5.3 5.0 4.9 5.0 5.2 5.0 4.6 5.3 Day 2: 5.6 4.8 4.9 5.3 5.2 4.9 5.4 5.0 5.4 4.9 5.5 5.4 Day 3: 5.9 4.9 5.3 5.4 5.2 5.5 5.0 5.8 5.5 5.4 5.4 5.1 Construct an ANOVA table. Round your answers to four decimal places as needed. One-way ANOVA: Sugar Concentration Source DF SS MS F P Days Error Total
- Betts Electronics purchases three replacement parts for robotic machines used in its manufacturing process. Information on the price of the replacement parts and the quantity purchased is given here. Price Quantity Part 2010 2018 2010 2018 RC-33 $ 0.50 $ 0.60 320 340 SM-14 1.20 0.90 110 130 WC50 0.85 1.00 230 250 Compute Paasche’s index for 2018 using 2010 as the base period.(Round your answer to 2 decimal places.)In Australia, wheat grain exports are often affected by little insects, it has been estimated that between one quarter and one third of the world grain crop is lost each year during storage and transportation. Even with the strictest safety precautions and protocols, these insects are not completely eliminated. At the start of the voyage, 40 ants remained among the wheat grains in the cargo hold of the ship. One week into the voyage, there were approximately 310 ants. The model used to estimate the number of ants, N, is N(t) = 400/1+9e(to the power of kt) a) a) although the question says there are 40 ants on the ship at the start of the trip, the exporters wanted independent algebraic proof using the proposed model of N(t)=400/1+9e(to the power of kt) show how the captain used the model to prove there were 40 ants initially N(0) 400/10 = 40 ants b) rearrange the model , without substitution of values , to K= K= In(1/9(400/n(t) -1 )) / 1 c) Now , find the value of k correct to 2…In Australia, wheat grain exports are often affected by little insects, it has been estimated that between one quarter and one third of the world grain crop is lost each year during storage and transportation. Even with the strictest safety precautions and protocols, these insects are not completely eliminated. At the start of the voyage, 40 ants remained among the wheat grains in the cargo hold of the ship. One week into the voyage, there were approximately 310 ants. The model used to estimate the number of ants, N, is N(t) = 400/1+9e(to the power of kt) b) rearrange the model , without substitution of values , to K=