The average number of cavities that thirty-year-old Americans have had in their lifetimes is 6. Do twenty- year-olds have a different number of cavities? The data show the results of a survey of 11 twenty-year-olds who were asked how many cavities they have had. Assume that the distribution of the population is normal. 7, 4, 5, 4, 3, 6, 7, 6, 6, 6, 5 What can be concluded at the a = 0.05 level of significance? a. For this study, we should use |Select an answer b. The null and alternative hypotheses would be: Ho: ? Select an answer H1: ? Select an answer v c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? v a f. Based on this, we should Select an answer | the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the population mean number of cavities for twenty-year-olds is not significantly different from 6 at a = 0.05, so there is insufficient evidence to conclude that the population mean number of cavities for twenty-year-olds is different from 6. The data suggest the population mean is not significantly different from 6 at a = 0.05, so there is sufficient evidence to conclude that the population mean number of cavities for twenty-year-olds is equal to 6. O The data suggest the populaton mean is significantly different from 6 at a = 0.05, so there is sufficient evidence to conclude that the population mean number of cavities for twenty-year- olds is different from 6. h. Interpret the p-value in the context of the study. There is a 13.18679668% ch