You may need to use the appropriate appendix table or technology to answer this question. standard deviation for a one-hour session is =$7.5. (a) What assumptions about the population should we be willing to make if a margin of error is desired? We should be willing to make the assumption that the population is at least approximately skewed left. We should be willing to make the assumption that the population is at least approximately uniform. We should be willing to make the assumption that the population is at least approximately skewed right. We should be willing to make the assumption that the population is at least approximately normal. We should be willing to make the assumption that the population is at least approximately bimodal. (b) Using 95% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.) $ (c) Using 99\% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.) $ You may need to use the appropriate appendix table or technology to answer this question. standard deviation for a one-hour session is =$7.5. (a) What assumptions about the population should we be willing to make if a margin of error is desired? We should be willing to make the assumption that the population is at least approximately skewed left. We should be willing to make the assumption that the population is at least approximately uniform. We should be willing to make the assumption that the population is at least approximately skewed right. We should be willing to make the assumption that the population is at least approximately normal. We should be willing to make the assumption that the population is at least approximately bimodal. (b) Using 95% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.) $ (c) Using 99\% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.) $