Aconsumer group claims that the mean minimum time "Makes for a sedan to travel a quarter mile is greater than 14.9 seconds. A random sample of 21 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.09 seconds. At a: = 0.10 is there enough evidence to support the consumer group's claim? Complete parts {a} through {d} below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha. mg Em (Type integers or decimals. Do not round.) The claim is the : hypothesis