In: Statistics and Probability
The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions.
Bank A |
6.46.4 |
6.66.6 |
6.76.7 |
6.86.8 |
7.17.1 |
7.27.2 |
7.57.5 |
7.87.8 |
7.87.8 |
7.87.8 |
|
---|---|---|---|---|---|---|---|---|---|---|---|
Bank Upper BBank B |
4.24.2 |
5.35.3 |
5.85.8 |
6.16.1 |
6.76.7 |
7.87.8 |
7.87.8 |
8.48.4 |
9.49.4 |
10.010.0 |
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Construct
aa
9999%
confidence interval for the population standard deviation
sigmaσ
at Bank A.
nothing
minless than<sigma Subscript Bank Upper AσBank Aless than<nothing
min
Dear I think you have enter data twice at a single line..and you may interested to calculate 99% confidence interval for population standard deviation of both Banks. If my assumption is right , Carryout the following procedure.. And Give me a THUMBS UP for my work dear...