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.] (Use /, for alloy connections and u, for EC connections.) Type Z Mean Std Dev Std Error 21 18 . 49100000 0. 55012821 0. 12004782 21 17. 90000000 0. 48998389 0 . 10692325 Variances DF Prob> ITI Unequal 3. 6763 39.5 0. 0007 Equal 3. 6763 40.0 0 . 0007 State the relevant hypotheses. OHD: H 1 - H2 = 0 Hai H1 - H 2 = 0 OHp:H1 - H2 = 0 Ha : H 1 - H 2 > 0 OHO : H 1 - H2 0 Ha: H 1 - H 2 = 0 OHO : H 1 - H2 = 0 Ha : H 1 - H z