Which of the following is the most appropriate unit to describe the rate at which water flows over niagara falls?

days per billion gallons, because the independent quantity is volume of water in billion gallons and dependent quantity is time in days
billion gallons per day, because the independent quantity is volume of water in billion gallons and dependent quantity is time in days
billion gallons per day, because the independent quantity is time in days and dependent quantity is volume of water in billion gallons
days per billion gallons, because the independent quantity is time in days and dependent quantity is volume of water in billion gallons

What is this inequality notation? t is less then or equal to 2

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10