A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.7 seconds. A random sample of 22 sedans has a mean minimum time to travel a quarter mile of 15.4 seconds and a standard deviation of 2.10 seconds. At α = 0.10, do you have enough evidence to support the consumer group’s claim?

(a) Identify the claim and state H₀ and H_a, 

(b) Use technology to find the P-value, 

(c) Decide whether to reject or fail to reject the null hypothesis, and 

(d) Interpret the decision in the context of the original claim. Assume the population is normally distributed.