What is the value of this sample statistic from our data? 48.19 Correct Part 2 of 8 We should think about types of errors. A type I error is when we reject Correct the null hypothesis when it is actually true Correct . In context, this means that we think that lead levels are higher in the group working traffic enforcement Correct , when actually lead levels are not significantly different between the two groups Correct . A type II error is when we fail to reject Correct the null hypothesis when it is actually false Correct . In context, this means that we think that lead levels are not significantly different between the two groups Correct , when actually lead levels are higher in the group working traffic enforcement Correct . Part 3 of 8 I think that a type II error is worse. As such, we should choose a larger Correct -level. Considering that is a medium -level, what is a reasonable choice of ? 0.10 Correct Part 4 of 8 Which of the following condiitons do we need to think about in order to use the Central Limit Theorem? (Check all that apply to this particular situation.) nq > 10, or at least 5. np > 10, or at least 5. We have independence of members within each sample. Sample sizes are at least 30. Each sample is less than 10% of its respective population. We are reasonably sure that each population is close to normally distributed. Neither sample is dramatically different from a normal distribution. We have independence of members between each