The time spent (in days) waiting for a heart transplant in two states for patien
ID: 3045551 • Letter: T
Question
The time spent (in days) waiting for a heart transplant in two states for patients with type Upper A Superscript plusA+ blood can be approximated by a normal distribution, as shown in the graph to the right. Complete parts (a) and (b) below. Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING... 60195x mu equals 128=128 sigma equals 19.5=19.5 A normal curve labeled mu = 128 and sigma = 19.5 is over a horizontal x-axis labeled from 60 to 195 in increments of 27 and is centered on 128. (a) What is the shortest time spent waiting for a heart that would still place a patient in the top 30% of waiting times? nothingm days (Round to two decimal places as needed.)
Explanation / Answer
a) for top 30% ; at 70th percentile z score =0.5244
threfore corresponding waititing time =mean+z*std deviation =128+0.5244*19.5 =138.23
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