A survey conducted by the American Automobile Association showed that a family of four spends an average of $215.60 per day whil
e on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls resulted in a sample mean of $252.45 per day and a sample standard deviation of $77.50. a. Develop a 95% confidence interval estimate of the mean amount spent per day by a family of four visiting Niagara Falls (to 2 decimals). ( , )
b. Based on the confidence interval from part (a), does it appear that the population mean amount spent per day by families visiting Niagara Falls differs from the mean reported by the American Automobile Association?
Okay with the vertical angles theorem we know that the angles across from each other are congruent so that immediately tells us g=92°. then the straight line that h and 92° is on =180 so we can use that to solve for h. so 180-92=88. so h =88. same rules apply to the lower intersection. k=91° and 91+m=180. so m=89°