.A study was conducted to determine the level of cyanide in 20 exposed spot (soil and water) within the mine site are listed below: Spot Soil Water Spot Soil Water 1 2.5 4.9 11 1.8 4.2 2 6.9 7.0 12 1.8 1.1 3.1 5.9 13 6.0 10.0 4 3.3 2.9 14 20.0 11.0 2.1 4.4 15 3.0 5.5
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- The price per share of stock for a sample of 25 companies was recorded at the beginning of 2012and then again at the end of the 1st quarter of 2012 (the wall street Journal, April 2, 2012).How stocks perform during the 1st quarter is an indicator of what is ahead for the stock marketand the economy. Use the sample data in the file entitled StockPrices to answer the following.a. Let didenote the change in price per share for company i where di = 1st quarter of 2012price per share minus the beginning of 2012 price per share. Use the sample mean of thesevalues to estimate the dollar amount a share of stock has changed during the 1st quarterData on the average size of a soda (in ounces) at all thirty major league baseball parks are as follows: 14, 18, 20, 16, 16, 12, 14, 16, 14, 16, 16, 16, 14, 32, 16, 20, 12, 16, 20, 12, 16, 16, 24, 16, 16, 14, 14, 12, 14, 20. Compute descriptive statistics for this variable. Comment on the results. Presuming the first fifteen are drink sizes in the American League and the last fifteen are drink sizes in the National League, test the hypotheses: Soft drink sizes are larger at American League Ball Parks than at National League Ball Parks. Do the data represent a sample or a census?6..The value of the FEEM absorbance measurement in microalgae-contaminated water is calculated as follows FEEM absorbance concentration (cumulative Intensity) 5,285 3,727 20,116 18,269 6,484 9,542 8,978 3,900 7,431 5,772 3,381 19,722 18,951 3,249 5,805 7,249 11,067 17,118 ... Calculate: Based on the calculation data a, what is the probability of measuring FEEM with a concentration between 5.2 and 7.4
- In a fabric manufacturing factory, the quality control process using control charts from SPC. In an hour there are a total of 5 samples are taken each having 5 observations regarding the thickness of fabric in measured in millimeters. In a particular hour, the sample means (X-bar) are noted to be: 172.11,219.58, 208.24, 112.44, and 123.30 respectively. In the same sample, the corresponding ranges are: 13.17,13.38, 15.34, 13.04, and 13.02 respectively What are the lower and upper control limits for the R chart? O a. 0,29.17 Ob. None is correct Oc 0,28.67 O d. 0,29.67 O e. 0,31.47 Of. 0,30.98Can anyone help me in this statistics homework? An environmental scientist wants to estimate the mean chloride content of a river stream by taking samples at different points of the river downstream. The scientist obtains the following data of chloride content (mg/L) from his sample of 20 measurements at different parts. 212, 167, 182, 175, 196, 165, 192, 210, 196, 167, 197, 188, 207, 187, 214, 203, 168, 189, 168 & 170. Construct an interval estimate of the true mean chloride content of the river using 95 % level of confidence. Show your solution by uploading a picture of it. The following data are readings (in foot-pounds) of the impact strengths of two kinds of packaging material : material A 1.25 1.16 1.33 1.15 1.23 1.20 1.32 1.28 1.21 material B 0.89 1.01 0.97 0.95 0.94 1.02 0.98 1.06 0.98 a) Present an MS Excel generated table to determine whether there is evidence of a difference in the mean impact strengths for the two kinds of material.…In a fabric manufacturing factory, the quality control process using control charts from SPC. In an hour there are a total of 5 samples are taken each having 5 observations regarding the thickness of fabric in measured in millimeters. In a particular hour, the sample means (X-bar) are noted to be: 172.11, 219.58, 208.24, 112.44, and 123.30 respectively. In the same sample, the corresponding ranges are: 13.17, 13.38, 15.34, 13.04, and 13.02 respectively What are the lower and upper control limits for the R chart? O a. 0,30.98 O b. None is correct O c. 0,29.17 O d. 0,29.67 e. 0, 28.67 O f. 0,31.47
- In a fabric manufacturing factory, the quality control process using control charts from SPC. In an hour there are a total of 5 samples are taken each having 5 observations regarding the thickness of fabric in measured in millimeters. In a particular hour, the sample means (X-bar) are noted to be: 172.11, 219.58, 208.24, 112.44, and 123.30 respectively. In the same sample, the corresponding ranges are: 13.17, 13.38, 15.34, 13.04, and 13.02 respectively What are the lower and upper control limits for the X-bar chart? O a. 157.21, 177.05 O b. 146.01, 157.87 Oc. 159.25, 175.02 O d. None is correct O e. 142.92, 160.66 Of. 143.55, 165.476. Which of the following data is discrete? a. The age of students in Gr. 11 mixed math b. The time you spend studying for your wonderful math course c. The number of adults in your postal code who are fully vaccinated d. The volume of liquid sanitizer used during the pandemic1. The 50 measurements of acid rain in Wisconsin, whose histogram is given on the cover page of the chapter, are 3.58 3.80 4.01 4.01 4.05 4.05 4.12 4.18 4.20 4.21 4.27 4.28 4.30 4.32 4.33 4.35 4.35 4.41 4.42 4.45 4.45 4.50 4.50 4.50 4.50 4.51 4.52 4.52 4.52 4.57 4.58 4.60 4.61 4.61 4.62 4.62 4.65 4.70 4.70 4.70 4.70 4.72 4.78 4.78 4.80 5.07 5.20 5.26 5.41 5.48 c. Determine the mean and standard deviation.
- 1. The 50 measurements of acid rain in Wisconsin, whose histogram is given on the cover page of the chapter, are 3.58 3.80 4.01 4.01 4.05 4.05 4.12 4.18 4.20 4.21 4.27 4.28 4.30 4.32 4.33 4.35 4.35 4.41 4.42 4.45 4.45 4.50 4.50 4.50 4.50 4.51 4.52 4.52 4.52 4.57 4.58 4.60 4.61 4.61 4.62 4.62 4.65 4.70 4.70 4.70 4.70 4.72 4.78 4.78 4.80 5.07 5.20 5.26 5.41 5.48 a. Calculate the median and quartiles.conline.austincc.edu/webapps/assessment/take/launch.jsp?course_assessment_id%3= 756751_1&course_id= 846. * Question Completion Status: QUESTION 3 An elementary school student comes down with a stomach virus the day after she swims at the local pool. Her father warns other parents at the school that the pool is unsanitary and causes virus to spread. What should the parents conclude? Choose the best answer. O The pool is indeed unsanitary and causes viruses to spread. O The pool is not unsanitary and does not cause viruses to spread. O There is an association between people visiting the pool and increased reports of viruses. O There is no association between people visiting the pool and increased reports of viruses. O Nothing can be concluded because this is an anecdote. QUESTION 4 10 Is the following an observational study or an experiment? Take a random sample of people at a fitness center. Ask them if they use resistance bands or not. Compare the average muscle mass for those who do…Table 1 presents the number of nonconformities observed in 26 successive samples of 100 printed circuit boards. Note that, for reasons of convenience, the inspection unit is defined as 100 boards. Set up a c chart for these data. Table 1. Data on the Number of Nonconformities in Samples of 100 Printed Circuit Boards. Question: Please answer the control chart in excel with the graph too.