Asimple random sample of 13 four-cylinder cars is obtained, and the braking distances are measured. the mean braking distance is 137.5 ft and the standard deviation is 5.8 ft. a simple random sample of 12 six-cylinder cars is obtained, and the braking distances have a mean of 136.3 ft with a standard deviation is 9.7 ft. use a 0.05 significance level to test thee claim that the mean braking distance of four-cylinder cars is greater than the mean braking distance of six-cylinder cars.
(a) claim: in words
( b) claim: in equation form
(c) determine the hypotheses.
(d) draw the distribution -label the critical value(s).
( e) calculate the test statistic and include the test statistic on the graph above.
(f)state your conclusion in context of h g.
(g)state your conclusion in context of the claim.