Exercise: Given the monthly water consumption of family Y.What is the coefficient of skewness and kurtosis? Month Water Consumption 14.22 Low system resources may affect your audio quality. Try closing some applications to improve performance. 13.88 5 16.34 6 15.05 7 11.95 8 12.98 9 14.25 10 14.52 11 14.87 12 10.89
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- Samples are collected from the River X and pH values are observed. 9 different pH values are listed in table 3. Table 3 Concentrations 3.55 4.01 5.38 3.22 8.05 5.25 4.67 3.67 3.5Draw box plot and find a. Bowley’s coefficient of skewness b. Karl Pearson’s coefficient of skewness c. Third moment Rubric Stages of Process Marks Imagine and Plan 2Composition 2Effort 1Construct a hypothesis addressing which potato piece will have the greatest surface-area-to-volume ratio. Explain. Table 1a Why Are Cells Small Length (l) (cm) Width (w) (cm) Height (h) (cm) Size of Cross Section (h x w) (cm) Distance Traveled by IKI from Potato Edge (cm) Area of White Region (l x w) (cm) 2.50 2.50 2.50 6.25 cm 0.20 cm 2.64 cm 2.00 2.00 1.00 2.00cm 0.30 cm 1.87 cm 1.50 1.50 1.50 2.25 cm 0.50 cm 1.50 cm 1.00 1.00 1.00 1.00 cm 0.40 0.60 cm 2.00 0.50 0.50 0.25 cm 0.20 cm 0.15 cm 0.50 0.50 0.50 0.25 cm 0.30 cm 0.10 cmIn relation to an evaluation of a natural park you have collected data on the visitors, and obtaineddata for the travel costs and their zones of origin, i.e. basic data needed when applying the TravelCost Method.All visitors come by car and there’s only one person in each car. There are four different zones (Iclose, and IV most far away) and the total cost per person is given in the table below. Give a short explanation of the TCM. Would it be possible to do a reasonable TCM analysis from these data? Zone Travel cost per person($) Total population ineach zone Annual number ofvisitors from eachzone I 10 4000 400 II 15 3000 250 III 20 3500 410 IV 25 4000 450
- The article “Effect of Varying Solids Concentration and Organic Loading on the Performance of Temperature Phased Anaerobic Digestion Process” (S. Vandenburgh and T. Ellis, Water Environment Research, 2002:142–148) discusses experiments to determine the effect of the solids concentration on the performance of treatment methods for wastewater sludge. In the first experiment, the concentration of solids (in g/L) was 43.94 ± 1.18. In the second experiment, which was independent of the first, the concentration was 48.66 ± 1.76. Estimate the difference in the concentration between the two experiments, and find the uncertainty in the estimate.The data given is shown below 40 40 43 46 44 49 51 54 46 51 47 49 49 45 45 44 45 41 49 52 51 54 50 51 41 52 53 50 46 56 42 42 40 42 49 47 51 48 46 57 48 55 49 46 57 44 49 43 44 43 51 48 48 46 49 Class width = 6 Find the following: A. Decile (5th) B. Quartile (2nd) C. Skewness D. KurtosisThe betas are chosen so as to minimize: a. Errors b. SSR c. PMP d. Bias e. Noise
- A research company has designed three different systems to clean up oil spillages. The following table contains the results, measured by how much surface area (in square meters) is cleared in 1 hour. The data were found by testing each method in several trials. Is there any significant difference in the testing of effectiveness of the three systems? Use the 0.05 level of significance. System A System B System C 265 267 276 270 263 262 273 274 271 266 259 267 269 272 - 265 - -. Two soft drink dispensing machines should dispense 8 oz of your selection into a cup. The table below shows the data Machine 1 9.52 6.41 10.07 5.85 8.15 Machine 2 8.01 7.99 7.95 8.03 8.02 Which is more consistent in dispensing soda base on the measures of dispersion? Show all solutions.Q1A) List down the measures of central tendency and measures of dispersion 1) Q1B) The operations manager of a plant that manufactures tires wants to compare the actual inner diameters of two grades of tires, each of which is expected to be 575 millimeters. A sample of five tires of each grade was selected, and the results representing the inner diameters of the tires, ranked from smallest to largest, are as follows. Grade X grade Y 568 570 575 578 584 573 574 575 577 578 requirement. a) for each of the tow grades of tries, compute the mwan, median, and standred deviation. b) which grade of tire providing better quality? explain. c) what would be the effect on your answer in (a) and (b) if the last value for grade Y were 588 insert 578 explain. PLEAS ANSWER Q1&B. THANK YOU.
- Amelia is interested in understanding the factors surrounding fringe benefits and salary packages in Australia. She estimates the model: Annbens = β0 + β1 lannearn + β3exper + β4expersq + β5educ + β6male + β7 male_educ + u Using STATA she estimates Model (F1) by OS and obtains the following results: Source SS df MS Model Residual 702938241 427363687 7 602 100419749 709906.456 Total 1.1303e+09 609 1855996.6 annbens coef. std. err. t P > |t| [95% Conf. Interval] lannhrs -1180.478 181.3568 -6.51 0.000 -1536.647 -824.3093 lannearn 2033.2 91.60081 22.20 0.000 1853.304 2213.096 exper 24.83705 11.12976 2.23 0.026 2.97918 46.69493 expersq -0.4499223 0.2366406 -1.90 0.058 -0.9146638 0.0148192 educ -3.846457 21.41313 -0.18 0.858 -45.89996 38.20705 male -21.9345 328.8641 -0.07 0.947 -667.7947 623.9257 male_educ 5.905139 25.45598 0.23 0.817 -44.08817 55.89845 _cons -8190.175 1319.71 -6.21 0.000 -10781.97 -5598.38 Number of obs = 610 F (7, 602) = 141.45…During the graphical analysis of the data below, two different curves were fitted to the data using the least squares method. The curves are as follows. Decide which curve is more suitable by calculating the correlation coefficients.An agronomist undertook an experiment to investigate the factors that potato harvest. In his research, agronomist decided to divide the farm into 30 half hectare plots and apply varies level of fertilizer. Potato was then planted and the harvest at the end of the season was recorded. Fertilizer(Kg) Harvest (tons) 210 43.5 220 40.0 230 48.0 240 65.0 250 80.0 260 85.0 270 95.0 280 80.0 290 97.3 Note: No excel ANOVA output allowed. Students need to show all the steps in calculations. You are required to; Find the simple regression line and interpret the coefficients. Find the coefficient of determination and interpret its value. Does the model appear to be a useful tool in predicting the potato harvest? If so, predict the harvest when 250KG of fertilizer is applied. If not explain why not.