Essay
A study was made to determine which taxi company gave quicker service.Companies A and B were each called at 50 randomly selected times.The response times were recorded.The results are as follows.
Company A Company B
Mean response time 7.6 minutes 6.9 minutes
Standard deviation 1.4 minutes 1.7 minutes
At the 0.02 level of significance,test the claim that the two companies have different mean response times.Carry out the test assuming the population variances are equal.
Correct Answer:
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H0: μ1 - μ2 = 0 HA: μ1 - μ2 ≠ 0 Test sta...View Answer
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