Question

11. A long-range missile misses its target by an average of 0.88 miles. A new steering devise is supposed to increase accuracy. A random sample of 12 missiles were equipped with this new mechanism and tested. These 12 missiles missed by distances with a mean of 0.8 miles and assume the population standard deviation is 0.1 miles. At the level =0.01, test the hypothesis that the new steering mechanism lowers the miss distance of 0.88 miles. Assume that the population is normally distributed. a. State and symbolically. b. Compute the test statistic. c. Find the p-value. d. State the initial conclusion. e. State the conclusion in terms of the original claim .

Answer 1

Thus based on the hypothesis test, we can conclude that the new steering system device increased the accuracy