A news program stated that one of the candidates for mayor of a certain city commissioned a popularity study to ascertain his chance of re-election. The report claimed that 55% of the voters randomly sampled in this study favored the mayor; it also detailed that there was a margin of error of 3% with 95% confidence. Which of the following best describe the meaning of this margin of error? a. There is a probability of 3% that the sample is based in favor of the mayor
b. There is a probability of 97% that 55% is the true value
c. It is likely that the true percentage of supporters for the mayor is within 1.96 x 3% of the 55%
d. it is likely that the true percentage of supporters for the mayor is within 3% of the 55%

Suppose that a customer is purchasing a car. he conducts an experiment in which he puts 10 gallons of gas in the car and drives it until it runs out of gas. he conducts this experiment 15 times on each car and records the number of miles driven. full data set car 1 238238 216216 205205 212212 240240 274274 297297 252252 260260 247247 257257 243243 296296 243243 290290 car 2 245245 204204 215215 209209 251251 165165 221221 295295 172172 287287 268268 305305 320320 260260 297297 describe each data set, that is determine the shape, center, and spread. sample mean for car 1 x overbar equalsx=216216 mi / 10 gal (type an integer or decimal rounded to one decimal place as needed.) sample mean for car 2 x overbar equalsx=209209 mi / 10 gal (type an integer or decimal rounded to one decimal place as needed.)