Question

92 Question Help The values listed below are waiting times in minutes) of customers at two different banks. Al Bank A customers enter a single waiting line that foods three toller windows. At Bank B, customers may enter any one of three different lines that have formed at the teler windows. Answer the following questions Bank A 6.8 7.1 7.3 79 79 79 Bank B 58 78 8.4 10.0 Click the icon to view the table of Chi-Square critical values. Construct a 98% confidence interval for the population standard deviation o at Bark A min para min (Round to two decimal places as needed.) Construct a 95% confidence interval for the population standard deviation o at Bank B. minearke min (Round to two decimal places as needed.) Interpret the results found in the previous parts. Do the confidence intervals suggest a difference in the variation among waiting times? Does the single-line system of the multiple line system seem to be a beter arrangement? OA. The variation appears to be significantly lower with a multiple-ine system. The multiple-ine system appears to be better OB. The variation appears to be significantly lower with a single line system. The single-line system appears to be better OC. The variation appears to be significantly lower with a multipleine system. The single in system appears to be better OD. The variation appears to be significantly lower with a single line system. The multiple-ine system appears to be better

Answer 1

Option B is right answer

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