Find the test statistic and P -value using the output. A statistical program is

Question

Find the test statistic and P-value using the output.

A statistical program is recommended. An article reported data on potential drop measurements for one sample of connectors wired with alloy aluminum and another sample wired with EC aluminum. Does the accompanying computer output suggest that the true average potential drop for alloy connections (type 1) is higher than that for EC connections (as stated in the article)? Carry out the appropriate test using a significance level of 0.01. [Note: The computer output reports the P-value for a two-tailed test.] (UseM for alloy connections and for EC connections.) Type N 2 Variances Mean Std Dev Std Error 21 16.49900000 0.55012821 0.12004782 21 15.90000000 0.48998389 0.10692325 DF Prob> ITI 0.0006 Equal 3.726040.0.0006 Unequal 3.7260 39.5

Explanation / Answer

here from above given output:

test statistic t =3.7260

and as it is one tailed test ; therefore p value =p value for two tailed test /2 =0.0006/2 =0.0003

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