5. On pages 20 to 22 on chapter 6 notes, the topic is how to calculate how large a sample must be to achieve a given confidence level and a given error distance. Suppose we are given the following information. No prior proportions are known, and the formula gives n = 432.41. On page 21 is an example that is worked two different ways. Use this example to decide which option below is most accurate for this situation? Use part (a) method and the correctly rounded value is n = 432 Use part (b) method and the correctly rounded value is n = 433 Use part (b) method and the correctly rounded value is n = 432 Use part (a) method and the correctly rounded value is n = 433

Vlad (the vampire) wanted to line the inside of his coffin bed with purple cloth. He measured the inside height, length and width to be twenty-three inches, eighty-four inches and twenty- eight inches. He also noted that it was a rectangular prism. The purple cloth is sold by the foot in sixty inch wide pieces. How many feet of cloth does he need to buy?

Karla picks up her friend who lives in another city and they head north on a road trip. Karla looks at a map and sees that after 5 hours of driving, they are passing mileage marker 352 on Highway 277. After driving for 12 hours, they pass mileage marker 842. What is Karla's average rate during the road trip? miles per hour

The first motorist paid $49.80 for 12 gallons of gas and 2 quarts of oil. The second motorist paid $64.50 for 15 gallons of gas and 3 quarts of oil What is the price of a gallon of gas and a quart of oil?