An investigation of the properties of bricks used to line aluminum smelter pots was published in an article. Six different commercial bricks were evaluated. The life span of a smelter pot depends on the porosity of thebrick lining (the less porosity, the longer the life span); consequently, the researchers measured the apparent porosity of each brick specimen, as well as the mean pore diameter of each brick. See the table.Apparent Porosity (y). Mean Pore Diameter (x).Click the icon to view the table.Data tableMean Pore DiameterApparentPorosity (%) (micrometers)BrickInterpret the y-intercept of the line. Choose the correct answer below.18.712.0В18.39.8O A. The y-intercept is Bo- This value has no meaning because 0 is not in the observed range of the independent variable mean pore diameter.16.37.36.95.4O B. The y-intercept is Bo: For each unit increase in mean pore diameter, the mean porosity is estimated to increase by B0-17.210.9O C. There is not enough information to answer this question.20.416.8O D. The y-intercept is Bo- The mean pore diameter is estimated to be Bo when the apparent porosity is zero.PrintA BC DEF

It is given that the variables are apparent porosity and mean pore diameter.

Answered: An investigation of the properties of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The Environmental Protection Agency (EPA) requires that cities monitor over 80 contaminants in their drinking water. Samples from the Lake Huron Water Treatment Plant gave the results shown here. All observations were below the allowable maximum, as shown by the reported range of contaminant levels. (presumably the mean would be the midrange). Substance Range Detected Allowable Maximum Origin of Substance Chromium 0.45 to 0.61 100 Discharge from steel and pulp mills, natural erosion Barium 0.006 to 0.018 2 Discharge from drilling wastes, metal refineries, natural erosion Fluoride 1.04 to 1.14 4 Natural erosion, water additive, discharge from fertilizer and aluminum factories For each substance, estimate the standard deviation σ by assuming uniform distribution and normal distribution shown in Table 8.8 in Section 8.7. (Round your answers to 4 decimal places.)
Use the same scales to construct boxplots for the pulse rates of males and females from the accompanying data sets. Use the boxplots to compare the two data sets. Click the icon to view the data sets. 40 50 60 70 80 90 100110 40 50 60 70 80 90 100110 OC. D. 40 50 60 70 80 90 100110 40 50 60 70 80 90 100110 Determine the boxplot for the women's boxplot data. A. В. 40 50 60 70 80 90 100110 40 50 60 70 80 90 100110 OC. OD. 40 50 60 70 80 90 100110 40 50 60 70 80 90 100110
The National Institute of Standard and Technology provided exact data on conductivity properties of materials. Following are conductivity measurements for 11 randomly selected pieces of a particular type of glass. Click this button to reveal the data Conductivtity 1.11 1.07 1.11 1.07 1.12 1.08 0.98 0.98 1.02 0.95 0.95 Download CSV file Download the .csv file or copy/paste the data into Excel. After downloading .csv file, you may want to save it as a Excel Workbook. Based on these data, is there evidence that the median conductivity of this type of glass is greater than 1? Use a 10% level of significance level. a. How many samples of data are there in this study? b. What test you would use for this problem? Select an answer c. The null hypothesis of this test states that Select an answer d. What type of test is this? O One-side Two-side
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construct a 90% condifence interval for the population mean of total calcium in this patient blood
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