Question
Applied Statistics
can you pease answer question 4 and 5
Blood pressure values are often reported to the nearest 5 mmHg (100, 105, 110, etc.). The actual blood pressure values for nine randomly selected individuals are given below.
Question 4: a 137.4 wrong and b 137.9 wrong
128.6 137.4 148.4 140.0 123.7 132.0 118.3 141.5 143.2 chegg study GuidedSexV md upload imagesto imgh x Google Translate x C ebassign nee J15385751 t/web/Student/Assignment-Responses/last?dep EE Apps M McGraw-Hill Connect e IFsc4301: February 20 e Information, Computi Diff fh Login Instant Expert Tutori in Robotics project ppt You want to see if th book (a) What is the median of the reported blood pressure values? mmHg (b) Suppose the blood pressure of the second individual is 137.9 rather than 137.4 (a small change in a single value). What is the new median of the reported values mmHg What does this say about the sensitivity of the median to rounding or grouping in the data? When there is rounding or grouping, the median c be highly sensitive to small change. When there is rounding or grouping, the median is not sensitive to small changes. When there is rounding or grouping, the median is only sensitive to large changes Need Help? Read It Talk to a Tutor Submit Answer Save Progress Practice Another Version 3 points Devorestat9 1.E. 039 My Notes Ask Your Teache consists of propagation lives (flight The propagation of fatigue cracks in various aircraft parts has been the subject of extensive study in recent years. The accompanying data hours/ to reach a given crack s in fastener holes intended for use in military aircraft (a) Compute and compare the values of the sample mean x and median X Round your answers to four decimal places flight hours/ flight hours/ (b) By how much could the largest sample observation be decreased without affecting the value of the median Enter your answer to three de places flight hours/
Explanation / Answer
putting the data in ascending order
a)median =(n+1)/2 th term =137.4
b) when we change 137.4 to 137.9, even then this value will remain in middle.
hence new median =137.9
c)this says that there is rounding or grouping, the median is not sensitive to small changes.
5)
a) here mean = 1.021
median =1.021
b) as median depends on 8th and 9th value , hence till largest number reaches to 9th number , it will not affect median,
hence largest it could be decreased by =1.361-1.035 =0.326
sample 118.3 123.7 128.6 132 137.4 140 141.5 143.2 148.4
