Asupervisor records the repair cost for 23 randomly selected stereos. a sample mean of $91.82 and standard deviation of $16.84 are subsequently computed. determine the 98% confidence interval for the mean repair cost for the stereos. assume the population is approximately normal.
find the critical value that should be used in constructing the confidence interval. round your answer to three decimal places.

If g^-1(x) is the inverse of g (x) which statement must be true

What is the solution to the division problem below x3+x2-11x+4/x+4

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit