Q1 A study reported by an electric engineering student considered the effect of X-ray inspection of integrated circuits. The radiation dose were studied as a function of current (in milliamps) and exposure time ( in minutes). The data are shown below. S.N 1 2 3 4 5 6 Current 10 10 10 10 15 15 15 20 20 20 7 8 9 10 Radiation dose 7.4 14.8 28.6 59.2 88.8 11.1 14.8 22.2 29.6 59.2 A: Simple Linear regression model between radiation dose and exposure time. Exposure time 0.25 0.5 1 2 3 10 15 0.5 1 2 a. Compute the correlation coefficient between radiation dose and exposure time. b. Find the equation of regression line between radiation doses on exposure time using least square method. c. Draw the scatter diagram between radiation dose and exposure time. d. Show the best fitted line on scatter diagram. e. Find the predicted value for each y using the exposure time and the equation obtained in part b. f. Find the residual value. B: Multiple Linear regression model between the response variable radiation dose and independent variables current and exposure time g. Estimate the regression coefficients of multiple linear regression model using matrix approach. h. Estimate the regression coefficients of multiple linear regression model using Rstudio. i. Interpret each regression coefficients. j. Use the multiple regression model to find the predicted value of radiation dose. k. Find the residual value.

3C 3D 3E

Scientists are looking at the effects of global warming on clutches of sea turtle hatchlings in different parts of the world. The data below has been collected: 1.Temperature of Incubation (in Kelvin) 2. Gender Group of Hatchling Clutch (0=0% male; 1= greater than 0% but less than or equal to 10% male; 2= greater than 10% but less than 20% male; 3= greater than 20% but less than or equal to 30% male and so on) 3. Number of hatched eggs 4. number of unhatched eggs 5. Location of Turtles (0=west North America; 1= west South America; 2= tropical regions of Pacific; 3= northwestern Atlantic; 4= Indian Ocean  Which of the above variables are measured using a nominal scale, ordinal scale and ratio scale. (An answer can be none of variables)   thank you

Over doses from opioids have captured the national spotlight. Rightly so they kill nearly 30,000 Americas a year and cause more than 1 million hospitalizations. However, the misuse of over-the-counter pain medications (e.g. Tylenol, Advil, Aleve) can cause stomach bleeding, ulcers, liver disease and, in some cases, death. Approximately 80% of Americans use these medications to relieve headaches, backaches, sore muscles, and reduce fever but they are unaware of the dangers if the drugs are not used correctly. A random sample (n=101) of adults were given a questionnaire to ask the question "How often do you use pain medication in one day?". Using the output, histogram, box- whisker plot, and the QQ Plot attached - check the assumption of normality for this data. PainNormalityInformationoutputhistbox 210317.pdf The assumption of normality was checked by comparing the and the median. This suggests that the distribution is slightly The + The is between the acceptable range of -3 and +3.…