Question
A local bank claims that the waiting time for its customers to be served is the lowest in the area. A competitor bank checks the
A local bank claims that the waiting time for its customers to be served is the lowest in the area. A competitor bank checks the waiting times at both banks. The sample statistics are listed below. Test the local banks claim. Use the information given below. State the null and alternative hypotheses, the significance level, the critical value, the test statistic, the decision and conclusion.
Local Bank Competitor Bank
Sample size n1= 46 n2= 50
Average Waiting
time in minutes 2.3 minutes 2.6 minutes
for each sample
Sample standard
Deviation of each S1 = 1.1 minutes S2 = 1.0 minutes
Sample
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