( 1 )
For the given data using Regression in Excel we get output as
So from the above output
( 1 )
b1 = 0.790393
bo = 11.460699
( 2 )
y = b0 + b1 x
Given x = 60 then
y = 11.460699 + 0.790393 ( 60 )
y = 58.884279
please round to 6 decimal places when possible! The table below shows the arm spans (in...
estimate the average age at which multiple sclerosis patients were diagnosed with the condition for the first time in a given city. How big should the sample be? Define your procedures for this estimate (if necessary, set your own values of unknown parameters, based on statistical theory). In Table 1 you will find all ages of this patient population. 54 58 56 48 62 59 55 56 60 52 53 61 56 56 53 37 71 62 39 61 54...
The alternating current (AC) breakdown voltage of an insulating liquid indicates its dielectric strength. An article gave the accompanying sample observations on breakdown voltage (kV) of a particular circuit under certain conditions. 62 51 54 57 42 54 56 61 59 64 51 54 64 62 51 68 54 56 58 51 56 50 56 56 46 55 54 54 53 48 48 55 57 49 63 58 57 55 53 59 54 52 51 56 60 50 57 59...
NUMBER OF PEOPLE 10.2 10.0 10.1 8.5 10.2 8.2 8 Source: United States Census. 11. In the Sanitary District of Chicago, operating engineers are hired on of a competitive civil-service examination. In 1966, there were 223 appl for 15 jobs. The exam was held on March 12; the test scores are s arranged in increasing order. The height of each bar in the histogram next page) shows the number of people with the correspondin examiners were charged with rigging the...
Problem #1: Consider the below matrix A, which you can copy and paste directly into Matlab. The matrix contains 3 columns. The first column consists of Test #1 marks, the second column is Test # 2 marks, and the third column is final exam marks for a large linear algebra course. Each row represents a particular student.A = [36 45 75 81 59 73 77 73 73 65 72 78 65 55 83 73 57 78 84 31 60 83...
Problem 4: Variables that may affect Grades The data set contains a random sample of STAT 250 Final Exam Scores out of 80 points. For each individual sampled, the time (in hours per week) that the student spent participating in a GMU club or sport and working for pay outside of GMU was recorded. Values of 0 indicate the students either does not participate in a club or sport or does not work a job for pay. The goal of...
solvel only E F G H below is pat data 3. A hospital administrator wished to study the relation between patient satisfaction (Y) and patients age (Xi, in years), severity of illness (X2, an index) and anxiety level (X3, an index). The administrator randomly selected 23 patients and collected the data in pat, where larger values of Y, X2 and X3 are, respectively, associated with more satisfaction, increased severity of illness and more anxiety. The data is saved in Moodle2...
Find the mean, median, and mode for each set of numbers. (If necessary, round your answers to one decimal place. If an answer does not exist, enter DNE.) (a) 69, 68, 55, 69, 54, 51, 64, 57, 69 mean median mode (b) 75, 49, 56, 35, 49, 33, 76, 70, 48 mean median mode 2. he scatter plot shows how long it took different numbers of workers to do the same job. (a) How many hours did it take the crew of...
Problem 1: Confidence Interval for Percentage of B’s. The data set “STAT 250 Final Exam Scores” contains a random sample of 269 STAT 250 students’ final exam scores (maximum of 80) collected over the past two years. Answer the following questions using this data set. a) What proportion of students in our sample earned B’s on the final exam? A letter grade of B is obtained with a score of between 64 and 71 inclusive. Hint: You can do this...
blockpy python review 16 processing json files second pic is the report.json file data BlockPy: Review 16) Process JSON The given file contains JSON data. Use the data associated with the "Employees" key (a list inside of a dictionary inside of a dictionary inside of a dictionary) to plot the distribution of employees. Note: You cannot embed the contents of the file directly in your program. Use the appropriate file handling style to access the data in the file. Note:...
2.5.26 The table shows the ages of the top 40 golfers in a 2009 golf tournament a) Construct an ordered stem and leaf display for these data. b) Construct an ordered stem and leaf display, splitting the stems from part a. EB Click the icon to view the data table. a) Construct an ordered stem and leaf display for these data. Golfers ages 32 30 51 59 4647 47 56 55 39 55 43 32 32 26 51 50 28...