Weegy: iIf Income decreases by 1000, Crime will be decreased by 50 User: Dullco Manufacturing claims that its alkaline batteries last forty hours on average in a certain type of portable CD player. Tests on a random sample of 18 batteries showed a mean battery life of 37.8 hours with a standard deviation of 5.4 hours.
In a left-tailed test at = .05 we would __________. Weegy: The p-value is equal to .05. User: Thirty patients are selected ... (More)