Please find A and B

Question 27 of 27 This test: 62 point(s) possible This question: 6 point(s) possible Submit test The data for a sample of 80 steel parts, given in the accompanying table, show the reported difference, in inches, between the actual length of the steel part and the specified length of the steel part. For example, a value of - 0.002 represents a steel part that is 0.002 inch shorter than the specified length. Complete parts (a) through (d). Click the icon to view the data table. Differences data a. At the 0.20 level of significance, is there evidence that the mean difference is different from 0.0 inches Difference between actual length and specified length Full data set -0.0005 0.0015 -0.0030 0.0015 -0.0025 0.0020 0.0015 - 0.0015 State the null and alternative hypotheses. 0.0010 0.0015 - 0.0025 - 0.0005 - - 0.0020 - 0.0025 0.0020 - 0.0030 0.0015 - 0.0015 0.0010 0.0025 - 0.0030 - 0.0020 - 0.0025 0.0030 Ho : H 0.0020 0.0010 0.0010 0.0005 - 0.0015 - 0.0010 0.0015 - 0.0020 - 0.0005 - 0.0005 0.0025 Hy : H V 0.0025 - 0.0025 - 0.0030 - 0.0015 0.0025 0.0005 - 0.0005 - 0.0015 - 0.0020 - 0.0010 0.0020 - 0.0005 0.0015 0.0015 - 0.0010 - 0.0025 0.0005 - 0.0020 0.0025 - 0.0005 - 0.0030 Determine the test statistic. 0.0025 - 0.0010 0.0010 - 0.0005 0.0025 0.0030 - 0.0025 -0.0030 - 0.0010 0.0025 -0.0025 - 0.0015 0.0010 0.0025 - 0.0010 0.0030 (STAT =. - 0.0010 - 0.0030 - 0.0030 0.0030 - 0.0015 0.0010 - 0.0015 - 0.0020 (Round to two decimal places as needed.) Find the p-value . p-value = (Round to three decimal places as needed.) Print Done State the conclusion . Ho . There is evidence to conclude that the mean difference is not equal to 0.0 inches. b. Construct a 80% confidence interval estimate of the population mean. SHS (Round to six decimal places as needed.) c. Compare the conclusions reached in (a) and (b). Choose the correct answer below. Time Remaining: 00:55:05 Submit test