1 point An analysis was run a known iron sample of 8.32%Fe. The following results were obtained by an analyst: 8.75,8.51,8.25.8.61 Which of the following statements is true assuming none of the data points are outliers? Tcalc =1.99 The analysis is accurate at the 95% confidence interval. Tcalc =17.05 The analysis is not accurate at the 95% confidence interval. Tcalc =1.99 The analysis is not accurate at the 95% confidence interval. Not enough information is given to calculate Tcalc. 1 point One type of analysis was carried out n1=6 times and the second type of analysis required n2=8 repeats. Calculate the pooled degrees of freedom