12. Based on your descriptive statistics above, what do you think the answer to your research question will be? Justify your response using specific details about the descriptive statistics. Based on the descriptive statistics above, the answer to my research question will be yes, the mean annual concentration PM10 for 2010-2015 is greater than the mean annual concentration PM10 for 2016-2022. According to the sample mean the "annual concentration PM10 for the Air Quality 2010-2015" or group 1 has a higher mean which suggest that "Air Quality 2010-2015 annual concentration PM10 were overall higher than the 2016-2022 annual concentration PM10. With the sample standard deviation, it also shows that 2010-2015 annual concentration PM10 is larger, which suggests that the 2010-2015 annual concentration has data values that are more spread apart than those in the 2016-2022 annual concentration PM10. 4. Make Inferences Conduct a hypothesis test and find a confidence interval to make inference about your population and answer your research question. 13. Explain why an "Independent Samples t" test is appropriate for this case study. In your explanation, include the type of data (quantitative or categorical), the number of variables, and the number of samples. If there are two samples