Question

Test the indicated claim about the means of two populations. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Use the traditional method. 1) A researcher was interested in comparing the response times of two different cab companies. Companies A and B were each called at 50 randomly selected times. The calls to company A were made independently of the calls to company B. The response times for each call were recorded. The summary statistics were as follows:

Company A Company B

Mean response time 7.6 mins 6.9 mins

Standard deviation 1.4 mins 1.7 mins

Use a 0.02 significance level to test the claim that the mean response time for company A is the same as the mean response time for company B. Use the traditional method of hypothesis testing

**Write the critical value(s) please show all
work**

Answer #1

A researcher was interested in comparing the response times of
two different cab companies. Companies A and B were each called at
50 randomly selected times. The calls to company A were made
independently of the calls to company B. The response times for
each call were recorded. The summary statistics were as
follows:
Company A
Company B
Mean response time
7.6 mins
6.9 mins
Standard deviation
1.4 mins
1.7 mins
Use a 0.01 significance level to test the...

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