A manufacturer of a portable cell phone charger markets its batteries as having, on average, 3.5 hours to rapidly charge to full capacity. A consumer group decides to re-test this claim by assessing the length of time that 30 of their chargers take to be fully charged and finds the average is 3.6 hours, with a standard deviation of .45. The resulting p-value is .41222; thus, the null hypothesis is not rejected. The consumer group concludes that the manufacturer's claim that its portable cellphone charger can be recharged, on average, 3.5 hours is accurate. What type of error is possible in this situation? type I type II not an error both