Mathematics, 13.11.2019 19:31, nsuleban8663
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.
Answers: 1
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Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?
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Mathematics, 21.06.2019 17:30, redbenji1687
Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.
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Asimple random sample of 13 four-cylinder cars is obtained, and the braking distances are measured....
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