7-22. Two different analytical methods were used to deter- mine residual chlorine in sewage effluents. Both...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
7-22. Two different analytical methods were used to deter- mine residual chlorine in sewage effluents. Both meth- ods were used on the same samples, but each sample came from various locations with differing amounts of contact time with the effluent. Two methods were used to determine the concentration of Cl in mg/L, and the results are shown in the following table: Sample Method A Method B 0.39 0.84 1 0.36 1.35 2.56 2 3 1.76 4 3.35 3.92 4.69 5.35 6 7.70 8.33 7 10.52 10.70 8. 10.92 10.91 (a) What of t test should be used to compare the type two methods and why? (b) Do the two methods give different results? State and test the appropriate hypotheses. (c) Does the conclusion depend on whether the 90%, 95%, or 99% confidence levels are used? 7-22. Two different analytical methods were used to deter- mine residual chlorine in sewage effluents. Both meth- ods were used on the same samples, but each sample came from various locations with differing amounts of contact time with the effluent. Two methods were used to determine the concentration of Cl in mg/L, and the results are shown in the following table: Sample Method A Method B 0.39 0.84 1 0.36 1.35 2.56 2 3 1.76 4 3.35 3.92 4.69 5.35 6 7.70 8.33 7 10.52 10.70 8. 10.92 10.91 (a) What of t test should be used to compare the type two methods and why? (b) Do the two methods give different results? State and test the appropriate hypotheses. (c) Does the conclusion depend on whether the 90%, 95%, or 99% confidence levels are used?
Expert Answer:
Related Book For
Statistics for Business and Economics
ISBN: 978-0321826237
12th edition
Authors: James T. McClave, P. George Benson, Terry T Sincich
Posted Date:
Students also viewed these accounting questions
-
Regression methods were used to analyze the data from a study investigating the relationship between roadway surface temperature (x) and pavement deflection (y). Summary quantities were n = 20, yi =...
-
In the engine system shown l = 10 in. and b = 4 in. The connecting rod BD is assumed to be a 3-lb uniform slender rod and is attached to the 4.5-lb piston P. During a test of the system, crank AB is...
-
In Exercises 10, state whether each standardized test statistic t allows you to reject the null hypothesis. Explain. (a) t = 1.705 (b) t = -1.755 (c) t = -1.585 (d) t = 1.745 -4-3 -21 02 3 4 -1o...
-
What does it mean that flame is non-luminous it is yellow it is invisible It has a very bright blue inner cone it is dark
-
Use the excerpt of Dragonfly Corporations asset balances below to compute Dragon-flys working capital, and current ratio for 2016 and 2015. Comment on Dragonflys liquidity and changes in liquidity...
-
For a 52 wt% Zn-48 wt% Cu alloy, make schematic sketches of the microstructure that would be observed for conditions of very slow cooling at the following temperatures: 950C (1740F), 860C (1580F),...
-
When an \(800 \mathrm{~kg}\) compact car accelerates from rest to \(27 \mathrm{~m} / \mathrm{s}\), it consumes \(0.0606 \mathrm{~L}\) of gasoline, and \(1.0 \mathrm{~L}\) of gasoline contains...
-
1. Cisco Systems went from a push to a pull approach to its supply chain after the dot-com debacle. How are these two approaches different? Does it depend on the state of the economy, which one...
-
(c) Soda Crush is contemplating the following investments in the coming year: Purchase of office building as the company finds it challenging to manage their real estate needs using rental premises...
-
MARKETING EXCELLENCE Given today's increasingly hectic lifestyles, precooked meals and processed ingredients are becoming the norm for Canadian families to use in preparing their daily meals....
-
Allday Fitness Club (AFC) was founded 23 years ago by a married couple, Tom and Theresa Kirkland, both professional athletes. They had very specific goals for their fitness center and crafted the...
-
Orion is a global company that sells copiers. Orion currently sells ten variants of a copier, with all inventory kept in finished-goods form. The primary component that differentiates the copiers is...
-
Gibson Companys adjusted balances at December 31, 2015 (listed alphabetically) were: Gibson prepared, but did not yet post, additional adjusting journal entries (AJEs) for $3,000 of depreciation and...
-
A steel rolling mill can produce I-beams at the rate of 20 tons per week. Customer demand for the beams is 5 tons per week. To produce I-beams, the mill must go through a setup that requires changing...
-
PlasFib is a manufacturer of synthetic fibers used for making furniture upholstery. It manufactures fiber in 50 colors on one line. When changing over from one color to the next, part of the line...
-
Ford and GM carry spare parts for their dealers at a third-party warehouse in Michigans Upper Peninsula. Demand for Ford spare parts is 100 units per month, whereas demand for GM parts is 120 per...
-
1. The economy of a hypothetical country has been stable for two or three years with very low unemployment. Wages have been gradually increasing during this time. Now stock market prices begin...
-
A genetically engineered strain of Escherichia coli (E. coli) is used to synthesize human insulin for people suffering from type I diabetes mellitus. In the following simplified reaction scheme,...
-
The U.S. Census Bureau reports a decline in the percentage of mothers in the workforce who have infant children. The following table gives a breakdown of the marital status and working status of the...
-
Organic coatings that use epoxy resins are widely used for protecting steel and metal against weathering and corrosion. Researchers at National Technical University (Athens, Greece) examined the...
-
The U.S. Department of Agriculture (USDA) reports that, under its standard inspection system, one in every 100 slaughtered chickens passes inspection with fecal contamination, a. If a slaughtered...
-
Terms a Split-off point b Joint cost c Separable cost d By-product e Joint product f Product Definitions 1 Product with low sales value compared with the sales value of the main or joint product(s)....
-
Milj-Spe AS produces two joint products, cooking oil and soap oil, from a single vegetable oil refining process. In July 2022, the joint costs of this process were NOK 24 000 000. Separable...
-
Claude Deux-Bussy is the owner and operator of Boissons Barbe-Bleue Sarl, a bulk soft-drink producer. A single production process yields two bulk soft drinks, Pellas (the main product) and Mlisande...
Study smarter with the SolutionInn App