Summary Wk4AssignTedrowW.docx (1)

Wk4AssignTedrowW.docx (1) Confidence Intervals Walden University RSCH 8210: Quantitative Reasoning and Analysis 14:15:35 GMT -05:00 Confidence Intervals The variable infrastructure index in the Afrobarometer data set is used to calculate confidence intervals. The data set has a mean age of 37.23. A confidence level describes the likely hood that the mean of one sample will fit within the mean of a greater population (Frankfort-Nachmias et al., 2021). Greater variation in the population leads to greater variation in the samples. High confidence levels indicate that the possible range of values are more stable. For example, a confidence interval of 95% indicates that 95% of the responses will fall within the identified range, and 5% will fall outside of the range. The sample for the infrastructure index variable is 12,933 representing the greater population of Africa. The mean for the variable infrastruc