Options for test to be performed are: left-tailed z-test, paired t-test, two-tailed z-test, or unpaired t-test

366676.1997634.qx3zay7 Jump to level 1 The mean voltage and standard deviation of 11 batteries from each manufacturer were measured. The results are summarized in the following table. Manufacturer Sample mean Population standard voltage (millivolts) deviation(millivolts) A 139 B 135 4 What type of hypothesis test should be performed? | Select 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 a = 0.05 significance level? Select v