Emily has 8450 trees to plant in rows on his tree farm. he will plant 125 trees per row. how many rows of trees will he have

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?