A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.9 seconds. A random sample of 23 sedans has a mean minimum time to travel a quarter mile of 15.4 seconds and a standard deviation of 2.09 seconds. At =0.01 is there enough evidence to support the consumergroup's claim? Complete parts(a) through(d) below. Assume the population is normally distributed.

(a) Identify the claim and state H0 and Ha.

the claim is the ( ) hypothesis

(b) use technology to find the p value. find the standardized test statistic.

t = ?

obtain the p value , p = ?

(C) interpret the decision in the context of the original claim

there ( ) enough evidence at the ( ) % level of significance to ( ) the claim that the mean minimum time it takes for a sedan to travel a quarter of a mile is

( ) ( ) seconds