es, in percent, were as follows. 2.1 1.5 1.3 1.0 2.8 8.2 1.9 1.3 3.2 4.4 9.5 3.8 2.7 4.9 2.1 1.8 8.0 4.5 2.5
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Impure cans: A manufacturer of aluminum cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as follows.
2.1 1.5 1.3 1.0 2.8 8.2
1.9 1.3 3.2 4.4 9.5 3.8
2.7 4.9 2.1 1.8 8.0 4.5 2.5 1.6 1.9 1.5 2.8 1.6
Construct a boxplot for this sample. Is it reasonable to treat the sample as coming from an approximately normal population? Explain.
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- Bronze is an alloy of copper, zinc, and tin with small amounts of other elements. Two types of bronze castings are listed in the table below with the percent composition of copper, tin, and zinc in each casting. Determine the ratios called for in the table.A manufacturer of aluminium cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as follows. 7.1 2.6 8.3 4.6 9.3 5.1 8.3 1.7 6.0 9.2 7.3 6.8 4.4 8.7 7.9 8.0 6.2 8.3 4.8 8.6 9.1 6.5 5.7 9.4 Send data to Excel Part: 0 / 2 0 Part 1 of 2 Construct a boxplot for the given sample. B;8 2 3 5 6 X 7 8 4 9 10A manufacturer of aluminium cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as follows. 3.6 1.6 2.0 2.4 6.7 1.4 3.2 5.2 3.8 5.6 8.9 4.1 4.5 4.7 5.0 2.8 5.8 6.1 3.9 6.9 8.0 3.4 3.2 3.8 part 2. yes or no
- A manufacturer of aluminum cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as follows. 2.0 0.8 5.8 1.2 1.7 1.4 7.2 1.5 9.4 1.9 0.9 2.8 3.2 3.4 0.7 3.7 3.8 4.3 4.8 1.4 6.7 4.7 8.3 1.4 Choose the correct histogram for this sample.A manufacturer of aluminum cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as follows. 9.4 1.4 4.6 5.6 5.1 2.8 4.1 3.4 6.8 4.1 1.8 4.2 4.3 2.2 4.8 5.0 3.8 5.3 1.2 6.2 4.1 2.4 2.9 3.4 part 2. can or cannot for second bar.2. Suppose that the amount of protein in certain type of energy bar is Normally Distributed with a mean of 8.5 grams with a standard deviation of 0.45 grams. Suppose that a random bar of this type is selected.
- A manufacturer of aluminum cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as follows. 2.0 0.8 5.8 1.2 1.7 1.4 7.2 1.5 9.4 1.9 0.9 2.8 3.2 3.4 0.7 3.7 3.8 4.3 4.8 1.4 6.7 4.7 8.3 1.4Sand and clay studies were conducted at the West Side Field Station of the University of California. (Reference: Professor D. R. Nielsen, University of California, Davis.) Twelve consecutive depths, each about 15 cm deep, were studied and the following percentages of sand in the soil were recorded. 19.5 27.3 30.4 24.2 33.8 27.4 24.8 18.2 16.4 8.4 1.7 0.1 Test the sequence for randomness about the median. Use α = 0.05. (a) What is the level of significance? (b) Find the sample test statistic R, the number of runs.(c) Find the upper and lower critical values in Table 10 of Appendix II. c1 c2Forty-five specimens of a certain type of powder were analyzed for sulfur trioxide content. Following are the results, in percent. The list has been sorted into numerical order. 15.3 15.6 14.8 15.3 14.9 14.7 14.1 14.2 14.4 16.1 16.2 16.6 17.3 14.4 17.2 17.3 14.7 14.8 15.7 14.3 14.4 15.0 15.4 15.7 16.4 17.2 17.8 14.3 14.4 14.8 15.0 15.4 15.9 16.4 17.2 21.9 14.3 14.6 14.8 15.2 15.5 15.9 16.5 17.2 22.4 Construct a stem-and-leaf plot for these data. a. Construct a histogram for these data. Construct a dotplot for these data. b. C. d. Construct a boxplot for these data. Does the box-plot show any outliers?
- Engineering Utilities (Principles of Lighting Design) 1. Light from a chromatic light source strikes a surface. Seventy-three percent of the light is reflected and 27% is absorbed. a. What percentage of the light incident on the surface is transmitted? b. What are the reflectance, absorptance, and transmittance values? c. Is the surface light or dark in color? d. Is the surface translucent or opaque?1. Find the percentage of rainfall that is less than 9.01 inches.A particular dam contains approximately 1,200,000,000,000 cubic feet of water. For a week-long spike flood, water was released at a rate of 25,700 cubic feet per second. a. How much water was released during the flood? b. What percentage of the dam was released during the flood? a. The amount of water released during the week-long flood was (Simplify your answer.) GOOD b.% of the dam was released during the flood. (Type an integer or decimal rounded to the nearest hundredth as needed.)
