Based on text 10.16. A new technology is believed to provide greater fuel efficiency for cars. The creators of the technology claim that the improvement is, on average, at least 3 more MPG for cars. A random sample of 41 cars is tested, with a sample mean increase of 2.4 MPG, and sample standard deviation 2.279 MPG. If we're looking for a .05 significance level, what is the critical value of X ? a) 2.41, b) 2.45, c) 2.52, d) 3.59