Astudy was conducted to determine whether there is a connection between snoring and risk o
disease. in a sample of 1105 snorers, 86 had heart disease, while only 24 of the 1379 non-snorers had
heart disease.
a) find and interpret a 98% confidence interval for the difference between the proportions of snorers
and non-snorers with heart disease.

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a. m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum. how many seats does the larger van have?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

How to simply and write the answer n a whole number