According to Edmunds, the average price that shoppers paid for a new car is $30,320. Assume that the standard deviation for the price shoppers pay is $8,740. A random sample of 38 people who purchased a new car paid an average of $32,700. Use a 98% confidence interval to test the validity of claim made by Edmunds.

Which of the following expressions is equal to 2x^2+8

Which expression is rational? 6. , square root two, square root 14, square root 49

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?