Consider the following data:

19 46 74 40 44 65 33 76 50 58 31 37 70 41 61 51 56 73 48 55

Find the 40th percentile of this data.

please reference from equation sheet attached for credit

\fLinear Regression: The equation of a line is given by: y = mx + in Where: m is the slope of the line. b is the y-intercept of the line. The best fit line may be calculated by: (/1 Hr. Cr" ll ~ 0.05, then Case 3 (see below} should be used. Condence Intervals for Proportions. Case 1: Infinite Population. 10(1 - p) P is the probability of success. P is the probability of success in the sample. n is the number of samples. 2 is the confidence coefficient found in table 6.1. Its value is based on the confidence level. It is important to note that p is unknown. 80. when we do the calculations. we will estimate p by P. Case 2: Finite Population. ptl-p) N-n n Nl p is the probability of success. P is the probability of success in the sample. n is the number of samples. N is the population size. 2 is the condence coefficient found in table 6.1. Its value is based on the confidence level. Once again. when we do the calculations. we will estimate p by P. \fIndependent Samples, confidence interval for (p1 - |.I2): (' ') 312 +322+