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% Extra Credit (IK clwww.wi bassagn.net/web/Student/Assignment-Responses last?dep 17532 a * Apps 11 Netflix Albany O jeans! clothes à cars OhPolly G hard problem, Tooth Loss, Researchers Say" is the headine of an artide. The artile descrbes a study of ss young adults with pierced tongues. The researchers found recedng gums, which can lead to tooth loss, in 16 of the participants proportion of young aats vith pirced tongues ,ho haver rec mig gums. (a) Construct a 95% confidence interval for the (Round your answers to three decimal places.) (b) what assumptions must be made for use of the zcorfidence interval to be appropriate? (Select all that The sample is a random sample The sample is volntary. O The sample is independent. The sample size is large You may need to use the appropriate table in Appendix A to answer this question My Notes . Your Acrylic bone cement is sometimes used in hip and knee replacements to fix an artificial joint in place. The force required to break an acrylic bone cement bond was measured for six specimens under specified were 301.09 Newitons and 41.27 Neitons, respectively. Assuming that it is reasonable to assume that breaking force condoons has a dstribution thats approximately normal and using 95% confidence level, estimate the true average breaking force f for acrylic bone cement under the speified conditions. (Use Table 3 in Appendix A. Round your answer to the nearest whole number.) You may need to use the appropriate table in Appendix A to answer this question. Submit Assignment Save Assignmert ProgressExplanation / Answer
1)
Test and CI for One Proportion
Sample X N Sample p 95% CI
1 16 55 0.290909 (0.170877, 0.410941)
Using the normal approximation.
2)
One-Sample T
N Mean StDev SE Mean 95% CI
6 301.1 41.3 16.8 (257.8, 344.4)
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