1 A. Explain when the implementation of measurement uncertainty (error) uses descriptive statistical methods or the Gaussian method B B.Explain the importance or uncertainty of measurement (error)
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1 A. Explain when the implementation of measurement uncertainty (error) uses
B.Explain the importance or uncertainty of measurement (error)
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- Q1 Foot ulcers are common problem for people with diabetes. Higher skin temperatures on the foot indicate an increased risk of ulcers. The article “An Intelligent Insole for Diabetic Patients with the Loss of Protective Sensation" (Kimberly Anderson, M.S. Thesis, Colorado School of Mines), reports measurements of temperatures, in °F, of both feet for 18 diabetic patients. The results are presented in the Table Q1. Table Ql: Measurements of temperatures, in °F of left foot Vs right foot for 18 diabetic patients Left Foot Right Foot Left Foot Right Foot 80 85 75 88 89 87 80 76 81 86 82 78 81 82 85 80 89 85 80 89 87 78 80 87 86 87 82 78 78 86 76 88 89 89 90 88 (a) Compute the least-squares line for predicting the right foot temperature from the left foot temperature. (b) If the left foot temperatures of two patients differ by 2 degrees, predict by how much would their right foot temperatures will differ. (c) Predict the right foot temperature for a patient whose left foot temperature is…An analyst wants to know whether there is any significant difference in the measurement results produced by alternative method compared a reference method in determination of the concentration of vitamin C in vegetables. He analysed eight different test materials using the both methods and the results are shown below: Test if the alternative method provides compatible measurement results at significant level of 0.05. Given that ?? = 2.365. (? = 0.296)Which of the following values results from the use of a statistical test? 1. The critical value 2. The obtained value 3. Type I error 4. Type II error
- "Durable press" cotton fabrics are treated to improve their recovery from wrinkles after washing. "Wrinkle recovery angle" measures how well a fabric recovers from wrinkles. Higher is better. Here are data on the wrinkle recovery angle (in degrees) for two types of treated fabrics: Permafresh 12 13 15 11 10 16 14 Hylite 14 19 20 16 A manufacturer wants to know how large is the difference in mean wrinkle recovery angle. Give a 98% confidence interval for the difference in mean wrinkle recovery angle: [three decimal accuracy] [three decimal accuracy]Perform a chi-square analysis using the expected and observed data in Data Table 19. Calculate chi-squared (X2). Show your work in Panel 5. asap pleaseplease quickly i just need answer 9
- You may need to use the appropriate technology to answer this question. We want to test whether or not the addition of 3 variables to a model will be statistically significant. You are given the following information based on a sample of 25 observations. y = 62.480 1.838x₁ + 25.660x₂ - SSE = 745; SSR = 596 The model was also estimated including the 3 variables. The results are: ŷ ý = 59.220 – 1.766x + 25.635X, + 16.239Xg + 15.296X4 – 18.729x5 SSE = 540; SSR = 801 (a) State the null and alternative hypotheses. O Ho: One or more of the parameters is not equal to zero. H₂: B3 = P4=B5 O Ho: B₁ = B₂= B3 =B4=B5= H₂: One or more of the parameters is not equal to zero. O Ho: One or more of the parameters is not equal to zero. H₂: B₁ = B₂= B3 = P4 = B 5 = 0 ⒸH₁: B3 =B4 = ß5 = 0 H₂: One or more of the parameters is not equal to zero. ✓ (b) Test the null hypothesis at the 5% level of significance. Find the value of the test statistic. (Round your answer to two decimal places.) 5.64 X Find the…F. LL 1 Normal T No Spac. Heading 2 Title Subtitle ^三三三三 Paragraph Lab 7 Worksheet: More Hypothesis Testing using t-test Styles Psych248 F20 Dr. Huselid Part 2. Repeated Measures f The data below are from a sensory deprivation study looking at hearing threshold before and after one hour in a sensory deprivation chamber. Seven subjects had their hearing checked both before and after they were in a dark, silent chamber. Hearmg threshold is the minimum sound level you can detect. Test the hypothesis that hearing should be more sensitive (thus lower numbers) after sensory deprivation conmpared with before (use alpha = .05). BEFORE: 11, 34, 18, 33, 35, 22, 35 AFTER: 13, 31, 18, 29 , 32, 20, 28 What is the design of this study? What is the ndependent variable? What is the dependent variable? people Is the hypothesis one-tailed or two-tailed? State the Hypotheses in symbols and words: in words: in words: Create an Excel data file organized by rows. Each row is a participant. Variables -…Pick one or more and look at the image below A) estimated beta (slope) for this relationship is unlikely to be zero B) r-squared value for this relationship must be negative C) 20 is a plausible value for the population mean mpg for a vehicle with 50 hp
- Please please how to write if based on the followingNexium is a drug that can be used to reduce the acid produced by the body and heal damage to the esophagus. A researcher wants to estimate the proportion of patients taking Nexium that are healed within 8 weeks. A random sample of 224 patients suffering from acid reflux disease is obtained, and 213 of those patients were healed after 8 weeks. a. Identify the population of interest and sample of interest. what is the sample size? b. Describe the parameter of interest. c. Describe the statistic of interest. What value of the statistic obtained?Please show me your solutions and interpretations. Show the completehypothesis-testing procedure.A manufacturing company produces bearings. One line of bearings is specified to be 1.64 centimeters (cm) in diameter. A major customer requires that the variance of the bearings be no more than 0.001 cm2. The producer is required to test the bearings before they are shipped, and so the diameters of 16 bearings are measured with a precise instrument, resulting in the following values:1.69 1.62 1.63 1.70 1.66 1.63 1.65 1.71 1.64 1.69 1.57 1.64 1.59 1.66 1.63 1.65Assume bearing diameters are normally distributed. Use the data and α = 0.025 to test the data to determine whether the population of these bearings is to be rejected because of too high variance.