Question Help The time spent (in days) waiting for a heart transplant in two sta

Question

Question Help The time spent (in days) waiting for a heart transplant in two states for patents with type A blood can be approximated by a normal distribution, as shown in the graph to the right. Complete parts (a) and (b) below H-12 Click to view page 2 of the table. 205 (a) what is the shortest time spent waiting for a heart that would still place a patient in the top 20% of waiting times? Days (Round to two decimal places as needed.) (b) what is the longest time spent waiting for a heart that would still place a patient in the bottom 25% of waiting times? days (Round to two decimal places as needed.) Enter your answer in each of the answer boxes.

Explanation / Answer

a) z score for top 20% of waiting times = 0.84

Hence,

Shortest time for top 20% times = 129 + 0.84*21.8 = 147.31 days

b) z score for bottom 25% of waiting times = -0.67

Hence,

Longest time for bottom 25% times = 129 - 0.67*21.8 = 114.39 days

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