(-2) * (-1) * 4 * (-1) * 6 / 2 * (-3) con procedimiento

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

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Is the power produced directly proportional to the wind speed, give reasons for your answer?