1. We have the following data of temperature measured to subjects when entering a shopping plaza, these measurements are made with two different instruments located at the ends of the doors. Perform the appropriate analysis to determine the agreement between the measurements made. Sitio 1 Sitio 2 36.3 36.4 36.3 36.6 36.0 35.6 37.0 36.5 36.8 36.7 36.6 36.4 36.5 36.5 36.9 36.5 36.1 36.8 36.2 35.8 36.6 36.7
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- Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector measures 10 spacers and records the following thicknesses: 0.372" 0.376" 0.379" 0.375" 0.370" 0.373" 0.377" 0.378" 0.371" 0.380" Which spacers are defective (above the maximum limit or below the minimum limit)? All dimensions are in inches.3. J.D. Power and Associates conducts vehicle quality surveys to provide automobile manufacturers with consumersatisfaction information about their products (Vehicle Quality Survey, January 2010). Using a sample of vehicleowners from recent vehicle purchase records, the survey asks the owners a variety of questions about their newvehicles, such as those shown below. For each question, state whether the data collected are categorical orquantitative and indicate the measurement scale being used.a. Did you purchase or lease the vehicle?b. What price did you pay for the vehicle?c. How likely would you be to recommend this vehicle to a friend? (Definitely Not, Probably Not, Probably Will,and Definitely Will)d. What is your overall rating of your new vehicle (Unacceptable, Average, Outstanding, or Truly Exceptional)?The following BTU measurements are taken relative to some chemical process: 1244, 1198, 1212, 1235, 1245, 1190, 1202, 1220, 1233, 1208. A problem with the process is indicated if the mean BTU measurement varies too greatly from 1230. Given the aforementioned data, the hypotheses H0: µ = 1230 and H1: µ ≠ 1230, and α = 0.05, do the data indicate a problem with the chemical process? a. As |-1.72| < 1.833, the data do not indicate a problem with the chemical process. b. As |-1.72| < 2.262, the data do not indicate a problem with the chemical process. c. As |-1.72| < 1.833, the data indicate a problem with the chemical process. d. As |-1.72| < 2.262, the data indicate a problem with the chemical process. e. As |-1.81| < 1.833, the data do not indicate a problem with the chemical process. f. As |-1.81| < 2.262, the data do not indicate a problem with the chemical process. g. As |-1.81| < 2.262, the data indicate a…
- In each of the following situations, identify the scale(s) ofmeasurement that is appropriate for each situation. (i) A visiting school inspector asked a class teacher to rank thethirty students in her class on “level of discipline”, with 1 standingfor the least disciplined student and 30 standing for the most 3 disciplined student.(ii) Identical twins living in different environments are beingcompared to find out the influence of the environment on theiracademic performance. A standard test on academic performance isgiving to fifty (50) sets of identical twins and their performancegraded over 100. (iii) “Regular” students and students admitted under thedistance learning programme into Accra Institute ofTechnology are administrated a questionnairemeasuring “level of maturity” of the students, withscores on “level of maturity” ranging from 0 to 10. (iv) One thousand students in a statistics class are asked torate their lecturer on teaching effectiveness at the end ofthe…Use the following Frequency table to calculate the standerd deviation. Class Frequency 2……4 4 5……7 6 8…….10 3 11…..13 2 14…..16 5Please answer the following: Thank you. A study was conducted on levels of PBC in soil samples in both rural and urban areas with the following results in PPM units: Rural: 3.5 1.0 1.6. 12.0 8.1 5.3 23.0 8.2 1.8 9.8 1.5 9.7 9.0 Urban: 24.0 11.0 107.0 18.0 29.0 49.0 94.0 12.0 16.0 22.0 141.0 18.0 21.0 13.0 11.0. Construct two boxplots, one for rural and one for urban. Write a paragraph comparing the two distributions.
- The accompanying summary data on total cholesterol level (mmol/l) was obtained from a sample of Asian postmenopausal women who were vegans and another sample of such women who were omnivores. Diet Sample Size Sample Mean Sample SD Vegan 86 5.30 1.02 Omnivore 93 5.75 1.20 Calculate a 99% CI for the difference between population mean total cholesterol level for vegans and population mean total cholesterol level for omnivores. (Use ?Vegan − ?Omnivore. Round your answers to three decimal places.) , (mmol/l) Interpret the interval. We are 99% confident that the true average cholesterol level for vegans is greater than that of omnivores by an amount within the confidence interval.We are 99% confident that the true average cholesterol level for vegans is less than that of omnivores by an amount within the confidence interval. We are 99% confident that the true average cholesterol level for vegans is greater than that of omnivores by an amount outside…3. As part of the National Health and Nutrition Examination Survey, the Department of Health andHuman Services obtained self-reported heights and measured the heights for males aged 12-16. Allmeasurements are in inches. Is there a difference between the reported height vs. the measured height?Use a 0.05 level of significance.ReportedHeight68 71 63 71 71 60 65 64 54 63 66 72MeasuredHeight67.9 69.9 64.9 68.3 70.3 60.6 64.5 67.0 55.6 74.2 65.0 70.8DifferenceNull and alternative hypothesis (give both in symbolic form and sentence form):Test statistic and p-value (show the calculation or show what you entered into the calculator (screenshotsare ok here)):Technical conclusion, circle one: reject the null hypothesis or fail to reject the null hypothesisWhy did you choose to reject or fail to reject the null hypothesis?Nontechnical conclusion addressing the original claim:There is a relationship between political affiliation (on a scale of 1 to 10, where 1 = very liberal and 10 = very conservative) and U.S. geographic regions, such that people living in the Northeast are more likely to consider themselves liberal than people living in the South. what is my unit of analysis?
- Given the measurements 20, 26, 40, 39, 25, 36, and 34, compute for the following: 1. Mean 2. range 3.P25 4. mean deviation 5. standard deviationIndicate which level of measurement is being used in the given scenario. 1. The teacher of a class records the eye color of each student. 2. The teacher of a class records the letter grade for mathematics for each student. 3. The teacher of a class records the percentage that each student got correct on the last science test. 4. A meteorologist compiles a list of temperatures in degrees Celsius for the month of May 5. A film critic lists the top 50 greatest movies of all time 6. A car magazine lists the most expensive cars for 2017To assess the air quality in a surgical suite, the presence of colony-forming spores per cubic meter of air is measured on three successive days. The results are as follows: {12, 24, 30}. Calculate the mean and standard deviation for these data.