6 Suppose a sample of 49 paired differences that have been randomly selected from a normally distributed population of paired differences yields a sample mean of d = 5 and a sample standard deviation of Sd = 7. 2 (a) Calculate a 95 percent confidence interval for Ad = M1 - /2. (Round your answers to 2 decimal places.) points X Answer is not complete. Confidence interval = 1; Yes (b) Test the null hypothesis Ho: Ad= 0 versus the alternative hypothesis Ha: Mo # 0 by setting a equal to .10, .05, .01, and .001. How much evidence is there that yo differs from 0? X Answer is not complete. t = Reject HO at a equal to all test values V extremely strong evidence that p1 differs from H2.6 (b) Test the null hypothesis H0: Pd: 0 versus the alternative hypothesis Ha; pd?! 0 by setting 0' equal to .10. .05, .01, and .001. How much evidence is there that pddiffers from 0? 2 9 Answer is not complete. points all test values a extremely strong a (c) The pvalue for testing H3: Lids 3 versus Ha: ,er > 3 equals 0.0256. Use the pvalue to test these hypotheses with a equal to .10. .05. .01. and .001. How much evidence is there that pd exceeds 3? What does this say about the size of the difference between #1 and [12? (Round your p-value answer to 4 decimal places.) a Answer is not complete. 0.10 and 0.05 9 strong 9