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Independent sample t test for comparison of mean.

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In the past, young women drivers have maintained a better driving record than young men drivers. An insurance company is concerned with the driving record of its insured customers. Specifically, it conducts a test for the number of speeding tickets received during the past year by drivers between the ages of 18 and 25.
men women
n1= 120 n2= 85
1= 1.2 2 = 0.4
s21 = 24.8 s22 = 10.6
A test for the equality of average number of tickets per driver for the two groups is desired.

Use = 0.01.

Calculate the p-value for this test.

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Solution Summary

The solution provides step by step method for the calculation of test statistic for independent sample t test . Formula for the calculation and Interpretations of the results are also included.

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p-value
In the past, young women drivers have maintained a better driving record than young men drivers. An insurance company is concerned with the driving record of its insured customers. Specifically, it conducts a test for the number of speeding tickets received during the past year by drivers between the ages of 18 and 25.
men women
n1= 120 n2= 85
= 1.2 = 0.4
= 24.8 = 10.6
A test for the equality of average number of tickets ...

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