VTE telephone operators are assigned to handle all 411 calls. The mean time to r
ID: 3155814 • Letter: V
Question
VTE telephone operators are assigned to handle all 411 calls. The mean time to respond to a caller is 30 seconds with a standard deviation of 5 seconds. Use 4 place places of accuracy. what proportion of calls are responded to in 27 to 33.3 seconds? VTE telephone operators are assigned to handle all 411 calls. The mean time to respond to a caller is 30 seconds with a standard deviation of 5 seconds. Use 4 place places of accuracy. what proportion of calls are responded to in 27 to 33.3 seconds? VTE telephone operators are assigned to handle all 411 calls. The mean time to respond to a caller is 30 seconds with a standard deviation of 5 seconds. Use 4 place places of accuracy. what proportion of calls are responded to in 27 to 33.3 seconds?Explanation / Answer
From information given, Xbar=30, s=5. Compute Z scores corresponding to Xi=27 and 33.3
Z1=(Xi-Xbar)/s=(27-30)/5=-0.6 and Z2=(33.3-30)/5=0.66
P(27<X<33.3)=0.2257+0.2454=0.4711 (Ans)
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