Question 12 0.04 points Save Answer A bank manager wishes to estimate the averag

Question

Question 12 0.04 points Save Answer A bank manager wishes to estimate the average waiting time for customers in line for tellers. A random sample of customer is selected to measure their waiting time in line for tellers. The data collected is shown below. customer waiting time 6.1 6.1 3.8 3.8 6.3 5.7 5.2 7.2 2. 3. compute the margin of error for a 95% confidence interval to estimate of the average time customers wait in line for tellers at the bank Use 3 decimals) · Moving to another question will save this response. KI K] Question 12of26

Explanation / Answer

data is

6.1,6.1,3.8,3.8,6.3,5.7,5.2,7.2

Using technology ,we get

n=8

x=5.525

=1.20446

df=n-1 =8-1 =7

For df=7, the value of t/2 is 2.365

MOE,E =t/2 × (/n)

              =2.365 x(1.20446/8)

              = 1.007

             

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