Week 12: Chapter 9 - 3 Unknown X *Course Hero X + X C A https:/ightingale.instructure.com/courses/3345304/assignments/33452071?m... A Q to Anmooncements The average number of cavities that thirty-year-old Americans have had in their lifetimes is 7. Do twenty- Syllabus year-olds have more cavities? The data show the results of a survey of 15 twenty-year-olds who were asked how many cavities they have had. Assume that the distribution of the population is normal. Modules 6, 10, 6, 7, 8, 7, 10, 10, 5, 7, 6, 7, 7, 8, 10 Grades what can be concluded at the c = 0.10 level of significance? People a. For this study, we should use (Select an answer Office 365 b. The null and alternative hypotheses would be: My Media Media Gallery H : V Select an answer Secure Exam Proctor (Proctorio) C. The test statistic(= (please show your answer to 3 decimal places.) Library d. The p-value = (Please show your answer to 4 decimal places.) Make Tuition . The p-value is (7 a Payment f. Based on this, we should (Select an an the null hypothesis. g. Thus, the final conclusion is that .. Accredible The data suggest that the population mean number of cavities for twenty-year-olds is not significantly more than 7 at c = 0.10, so there is insufficient evidence to conclude that the Class Notebook population mean number of cavities for twenty-year-olds is more than 7. Unicheck The data suggest the population mean is not significantly more than 7 at a = 0.10, so there is sufficient evidence to conclude that the population mean number of cavities for twenty-year- Learner Forms olds is equal to 7. O The data suggest the population mean is significantly more than 7 at a = 0.10, so there is sufficient evidence to conclude that the population mean number of cavities for twenty-year- old's is more than 7. h. Interpret the p-value in the context of the study. O if the population mean number of cavities for twenty-year-olds is 7 and if you survey another 15 twenty-year-olds then there would be a 3.08256895% chance that the population mean number of cavities for twenty-year-olds would be greater than 7. There is a 3.05256896% chance that the population mean number of cavities for twenty-year- olds is greater than 7. There is a 3.05256695% chance of a Type I error. if the population mean number of cavities for twenty-year-olds is 7 and if you survey another 15 twenty-year-olds then there would be a 3.05256895% chance that the sample mean for these 15 twenty-year-olds would be greater than 7.6. i. Interpret the level of significance in the context of the study O if the population mean number of cavities for twenty-year-olds is 7 and if you survey another 15 twenty-year-olds, then there would be a 10% chance that we would end up falsely concuding that the population mean nu umber of cavities for twenty-year-olds is more than 7. There is a 10% chance that flossing will take care of the problem, so this study is not necessary. There is a 10% chance that the popu cavities for twenty-year-olds is more than 7. O if the population mean number of cavities for twenty-year-olds is more than 7 and if you Type here to search O 11:17 PM 66.F 3/25/2022 22