Question

In: Math

Please use minitab, and show the steps to get to the solution. Meaning: Go to Stat,...

Please use minitab, and show the steps to get to the solution. Meaning: Go to Stat, basic statistics, etc, etc.

Forty sewage samples a waste water treatment plant were collected from a recent EPA report. The ppm of suspended solids in each specimen is presented in the following table. (a) Examine descriptive statistics of the mean, median, standard deviation, first quartile, third quartile, minimum value, and maximum value. What do these statistics indicate about the shape of the population distribution? (b) Create a histogram with binning center points at 30, 40, 50, 60, 70, 80, 90, and 100. What does the shape of the histogram tell of about the shape of the population distribution? (c) Construct a normal probability plot, a lognormal probability plot, and a Weibull probability plot of these data. Allow Minitab to estimate the best fit parameters for each distribution. Based on the plots and associated Anderson-Darling (AD) fit statistics, identify which distribution seems to be the best fit model at α = 0.05 for suspended solid material (ppm) in water. 59.4 44.3 55.4 39.9 50.8 45.9 53.4 80.7 68.8 40.3 49.5 64.5 48.4 82.4 33.6 75.3 37.4 50.6 62.7 56.2 86.8 42.7 44.2 30.7 43.4 50.9 44.8 69.1 102.2 53.1 68.9 43.6 59.1 79.6 90.7 51.6 71.2 55.3 59.6 50.8

Solutions

Expert Solution

Forty sewage samples a waste water treatment plant were collected from a recent EPA report. The ppm of suspended solids in each specimen is presented in the following table. (a) Examine descriptive statistics of the mean, median, standard deviation, first quartile, third quartile, minimum value, and maximum value. What do these statistics indicate about the shape of the population distribution? (b) Create a histogram with binning center points at 30, 40, 50, 60, 70, 80, 90, and 100. What does the shape of the histogram tell of about the shape of the population distribution? (c) Construct a normal probability plot, a lognormal probability plot, and a Weibull probability plot of these data. Allow Minitab to estimate te best fit parameters for each distribution. a) the spreadsheet attached here - :   b) the histogram of the following -   


Related Solutions

Please Use matlab and show command window. Please go through all steps Using a Dialog button...
Please Use matlab and show command window. Please go through all steps Using a Dialog button with 3 buttons have the user chose one of the 3 anonymous functions below to be used in the later selected three Programmed functions (1) Integral by Trapezoidal Method,(2) Integral by Simpson Method, or (3) Root by BiSection Method.: a. f(x) = 2*x^5 -3*x^2 – 5 b. f(x) = x^2 – 5 c. f(x) = x^(1/2) 2. Using an input statement ask the user...
on the following question please show the formula for the steps and from were you get...
on the following question please show the formula for the steps and from were you get the numbers) Cost-volume-profit analysis Di & Co. has the following budgeted information for a contract: - Fixed costs $ 270,000 Variable cost per unit $         20 Selling price per unit   $         40 Budgeted output / sales units          15,000 Required: (a) Compute the number of units that must be sold to breakeven.                              (b) How many units must be sold to earn $80,000 target profit?                                    ...
(on the following question please show the formula for the steps and from were you get...
(on the following question please show the formula for the steps and from were you get the numbers) Cost-volume-profit analysis Di & Co. has the following budgeted information for a contract: - Fixed costs $ 270,000 Variable cost per unit $         20 Selling price per unit   $         40 Budgeted output / sales units          15,000 Required: (a) Compute the number of units that must be sold to breakeven.                              (b) How many units must be sold to earn $80,000 target profit?                                    ...
state all null and alternative hypotheses and use the appropriate test statistic. Please use Minitab, show...
state all null and alternative hypotheses and use the appropriate test statistic. Please use Minitab, show step by step. Finally, draw your conclusions based on the Minitab output. The intake of high doses of beta-carotene in food substances has been associated in some observational studies with a decreased incidence of cancer. A clinical trial is being planned to compare the incidence of cancer in a group of humans receiving beta-carotene. Now there are four commercially available beta-carotene capsules available on...
PLEASE SHOW ALL WORK AND STEPS What is the pH of a solution that contains 0.050...
PLEASE SHOW ALL WORK AND STEPS What is the pH of a solution that contains 0.050 M acetic acid, HC2H3O2 (Ka=1.8 x 10^-5), and 0.05 M hydrocyanic acid HCN (Ka = 4.9 x 1^-10)?
show the steps how to get the result of this integral with infinite and -infinite as...
show the steps how to get the result of this integral with infinite and -infinite as boundaries ((x^2*(e^x)/((e^x+1)^2) = pi^2 / 3
Please Use TI BAII Plus Calculator and Show How You Get the Answer with it. The...
Please Use TI BAII Plus Calculator and Show How You Get the Answer with it. The Company is evaluating an asset that may increase sales by $120,000 every year for 4 years. There is no expected change in net operating working capital. The company's cost of capital is 6.5%. The proposed asset costs $400,000, will require $20,000 to modify for operations, and falls in the 3-year class MACRS for depreciation rates: .33, .45, .15, and .07 for years 1 through...
Please show the steps. Troy Engines, Ltd., manufactures a variety of engines for use in heavy...
Please show the steps. Troy Engines, Ltd., manufactures a variety of engines for use in heavy equipment. The company has always produced all of the necessary parts for its engines, including all of the carburetors. An outside supplier has offered to sell one type of carburetor to Troy Engines, Ltd., for a cost of $39 per unit. To evaluate this offer, Troy Engines, Ltd., has gathered the following information relating to its own cost of producing the carburetor internally: Per...
Please use Excel and show steps!! Greentrop Pharmaceutical Products are the world leader in the area...
Please use Excel and show steps!! Greentrop Pharmaceutical Products are the world leader in the area of sleep aids. Its major product is “Dozealot”. The Research-and-Development Division has defined two alternatives to improve the quality of the product. These alternatives are simple reformulations of the product to minimize the side effects and to improve the product efficacy. To conduct an analysis, management has decided to consider the possible demands for the drug under each alternative. The following payoff table shows...
Please show how you get to the answer and explain it! Please thoroughly show how to...
Please show how you get to the answer and explain it! Please thoroughly show how to do this! I'm so confused. Given the following information for Gator Company who uses the LIFO method: ​ ​ ​ ​ Net ​ NRV Minus ​ ​ ​ Realizable Replacement Normal Item Quantity Cost Value Cost Profit 1 1 $17.70 $24.60 $18.00 $17.10 2 1 10.80 8.28 9.30 5.58 3 1 72.00 64.80 67.20 57.60 4 1 4.80 3.12 2.88 2.64 5 1 12.00...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT