Assuming that the tire mileage is normally distributed and the mean number of miles to failure is not known and a known σ = 3,700 miles. Using your sample of 41 tires as your estimate of the mean (X Bar); what is the upper and lower bound of a 95% confidence interval? (This was your Question #2): Suppose when you did this this calculation you found the ERROR to be too large and would like to limit the error to 1000 miles. What should my sample size be?

Which statements about these triangles is true

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?