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 voltage (millivolts) | Sample standard deviation A 108 B 104 4 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