CHALLENGE ACTIVITY 6.4.1: Hypothesis test for the difference between two population means. 380306.1982968.qx3zqy7 V Jump to level 1 1 The mean voltage and standard deviation of 7 batteries from each manufacturer were 2 measured. The results are summarized in the following table. 3 Manufacturer Sample mean Population standard voltage (millivolts) deviation(millivolts) A 109 4 B 102 5 What type of hypothesis test should be performed? Select v What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex: 25 Does sufficient evidence exist to support the claim that the voltage of the batteries made by the two manufacturers is different at the o = 0.1 significance level? Select v