Question 4 of 4, Step 2 of 4 10/15 Correct A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater than that of its leading competitor. A sample of 18 phones from the manufacturer had a mean range of 1150 feet with a standard deviation of 40 feet. A sample of 12 similar phones from its competitor had a mean range of 1130 feet with a standard deviation of 27 feet. Do the results support the manufacturer's claim? Let Hy be the true mean range of the manufacturer's cordless telephone and Ha be the true mean range of the competitor's cordless telephone. Use a significance level of 0 0.1 for the test. Assume that the population variances are equal and that the two populations are normally distributed Step 2 of 4: Compute the value of the test statistic. Round your answer to three decimal places. Answer How to enter your answer Tables Previous Submit © 2020 Hawkes Learning 10095_2015071 M A EI P9x1