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Government regulators need to analyze the distance that two brands of electric cars can be driven...

Government regulators need to analyze the distance that two brands of electric cars can be driven between charges. A sample of 39 Lincomb Auto Company electric vehicles could drive a mean distance of 75.9 miles with a standard deviation of 4.1 miles. A sample of 38 Shevroley Auto Company electric vehicles could drive a mean distance of 74.3 miles with a standard deviation of 3.4 miles. A claim is made that the mean distance for Lincomb vehicles (μ1) is greater than the mean distance of Shevroley vehicles (μ2

).

For each part below, enter only a numeric value in the answer box. For example, do not type "z =" or "t =" before your answers. Round each of your answers to 3 places after the decimal point.

(a) Calculate the value of the test statistic used in this test.

     Test statistic's value =

(b) Use your calculator to find the P-value of this test.

     P-value =

math   Statistics-And-Probability   
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