Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise.An article in the Journal of Sound and Vibration (Vol. 151, 1991, pp. 383-394) described a study investigating the relationship betweennoise exposure and hypertension. The following data are representative of those reported in the article.ух1 60 5 850 63 4 891 65 6 902 70 8 905 70 4 901 70 5 904 80 7 946 90 9 1002 80 7 1003 80 6 100Fit a linear regression model relating blood pressure rise in millimeters of mercury (y) to sound pressure level in decibels (x) using leastsquares.(a) Draw a scatter diagram of y versus x (using statistical software). Does a simple linear regression model seem reasonable in thissituation? yes(b) Calculate the least squares estimate of the slope. B, = i(Round your answer to 3 decimal places.)(c) Calculate the least squares estimate of the intercept. P, =(Round your answer to 3 decimal places.)(d) Calculate an estimate of o?.(Round your answer to 3 decimal places.)(e) Obtain the predicted mean rise in blood pressure level associated with a sound pressure of 90 decibels.(Round your answer to 3 decimal places.)aMsueStatistical Tables and Charts

Answered: Please use the accompanying Excel data…

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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A state's park system statistical report for the 2014/2015 fiscal year gave the accompanying data on x = amount of money collected in user fees (in thousands of dollars) and y = operating cost (in thousands of dollars) for nine state parks in a certain district. User Fees (thousands of dollars) Operating Costs (thousands of dollars) 17 99 74 363 811 3,618 380 1,377 33 241 427 768 500 1,034 734 2,205 760 1,620 (a) Construct a scatterplot of the data. A scatterplot has 9 points. The horizontal axis is labeled "x" and ranges from approximately 0 to 900. The vertical axis is labeled "y" and ranges from 0 to 4,000. The points are plotted from left to right in a horizontal band, starting from the middle left of the diagram. The points are somewhat scattered, becoming more scattered from left to right, and are between the approximate horizontal axis values of 10 and 820 and between the approximate vertical axis values of 100 and 2,000. A scatterplot has 9 points. The horizontal axis is…
Existing data (year: 1995) (Observed values) * Age group of drivers Accident Severity 18-30 30-50 50+ Fatal 27 22 40 Grievous 27 15 44 injured Minor 82 60 120 97 Total 89 86 262 injury Total 136 204 437 Source: Office of the Dy. Commissioner of Police (Tra
Need help with parts e(ii), e(iii), e(iv), e(v), g, i Data for the question: Cost Passengers 1 3.7 63 2 6.01 86 3 4.16 73 4 5.7 80 5 5.78 91 6 5.1 68 7 5.01 69 8 4.39 72 9 5.57 83 10 5.03 79 11 1.24 51 12 6.89 96 13 6.91 85 14 2.03 48 15 2.12 64 16 8.72 110 17 5.1 76 18 0.54 59 19 8.15 91 20 3.08 71 21 4.39 65 22 4.67 78 23 6.29 96 24 4.7 70 25 4.55 84 26 3.96 63 27 7.66 83 28 4.25 77 29 4.55 74 30 3.09 75 31 7.66 94 32 9.31 86 33 6.25 84 34 3.05 65 35 6.42 83 36 4.02 78
The following data comes from a study on the effects of sunlight on pea plants, where x = distance (in centimeters) from an ultraviolet light source and y = sunburn index. x 18 21 25 26 30 32 36 40 40 50 51 54 61 62 62 y 4.0 3.7 3.0 2.9 2.6 2.5 2.2 2.0 2.1 1.5 1.5 1.5 1.3 1.2 1.1 The Correlation Coefficient for this data is r = (3 decimals) Use three words to describe this correlation: , ,
Yogesh
An article in Air and Waste ("Update on Ozone Trends in California's South Coast Air Basin," Vol. 43, 1993) studied the ozone levels on the South Coast air basin of California for the years 1976-1991. The author believes that the number of days that the ozone exceeds 0.20 parts per million depends on the seasonal meteorological index (the seasonal average 850 millibar temperature). The data follow: Year Days Index 16.3 1976 91 1977 105 17.1 1978 106 18.2 1979 108 18.1 1980 88 17.2 1981 91 18.2 1982 58 16.0 1983 82 17.2 Round your answers to 2 decimal places. (a) Fit a simple linear regression model to the data. Test for significance of regression using a = 0.05. y = i Calculate fo: i Year Days Index 1984 82 17.7 1985 65 17.2 1986 61 16.9 1987 48 17.1 1988 61 18.2 1989 43 17.3 1990 33 17.5 1991 36 16.6 i + i Is the simple linear regression model significant? No. (b) Calculate a 95% confidence interval on the slope. ≤B₁ ≤i X
The following table shows the typical depth (rounded to the nearest foot) for nonfailed wells in geological formations in Baltimore County (The Journal of Data Science, 2009, Vol. 7, pp. 111-127). Geological Formation Group Number of Nonfailed Wells Nonfailed Well Depth Gneiss 1,515 255 Granite 26 218 Loch Raven Schist 3,290 317 Mafic 349 231 Marble 280 267 Prettyboy Schist 1,343 255 Other schists 887 267 Serpentine 36 217 Total 7,726 2,027 Let the random variable X denote the depth (rounded to the nearest foot) for nonfailed wells. Detemine the cumulative distribution function for X. Round your answers to four decimal places (e.g. 98.7654). x < 217 217
Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. An article in the Australian Journal of Agricultural Research, "Non-Starch Polysaccharides and Broiler Performance on Diets Containing Soyabean Meal as the Sole Protein Concentrate" (1993, Vol. 44, No. 8, pp. 1483-1499) determined the essential amino acid (Lysine) composition level of soybean meals are as shown below (g/kg): 22.2 24.7 20.9 26.0 27.0 24.8 26.5 23.8 25.6 23.9 Round your answers to 2 decimal places. (a) Construct a 90% two-sided confidence interval for a sa's (b) Calculate a 90% lower confidence bound for a So² (c) Calculate a 95% lower confidence bound for a.. So Statistical Tables and Charts
Can you answer number 16 please
NW 6.12 CORPORATE SUSTAINABILITY OF CPA FIRMS. Corporate sustainability refers to business practices designed CORSUS around social and environmental considerations. Refer to the Business and Society (March 2011) study on the sustainability behaviors of CPA corporations, Exercise 2.23 (p. 59). Recall that the level of support for corporate sustainability (measured on a quantitative scale ranging from 0 to 160 points) was obtained for each in a sample of 992 senior managers at CPA firms. Higher point values indicate a higher level of support for sustainability. The accompanying StatCrunch printout gives a 99% confidence interval for the mean level of support for all senior managers at CPA firms. One sample T confidence interval: μ: Mean of variable 99% confidence interval results: Variable Sample Mean Std. Err. DF L. Limit U. Limit Support 67.75504 0.85314633 991 65.553241 69.95684 a. Locate the 99% confidence interval on the printout. b. Use the sample mean and standard deviation on the…

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