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A Local Bank Claims That the Waiting Time for Its α\alpha

Question 84

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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. Use P-values to test the local bankʹs claim. Use α\alpha = 0.05. Assume
the two samples are random and independent. Local BankCompetitor Bankn1=45n2=50x1=5.3 minutes x2=5.6 minutes σ1=1.1 minutes σ2=1.0 minutes \begin{array} { cc} \text {Local Bank}&\text {Competitor Bank}\\\mathrm { n } _ { 1 } = 45 & \mathrm { n } _ { 2 } = 50 \\\overline { \mathrm { x } } 1 = 5.3 \text { minutes } & \overline { \mathrm { x } } 2 = 5.6 \text { minutes } \\\sigma _ { 1 } = 1.1 \text { minutes } & \sigma _ { 2 } = 1.0 \text { minutes }\end{array}

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P-value = 0.0823; α ...

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