> Question 6 1 pts Suppose you take a random sample of 25 companies in an industry with 150 companies. You calculate the sample mean of the ratio of cost of goods sold (COGS) to sales for 2019. The sample mean ratio is 45%. Later on, you learn that the population COGS to sales ratio with all 150 companies is 49% What's the explanation for the discrepancy between the sample mean of 45% and the population mean of 49%? Sampling error Data mining bias Time period blas A lack of consistency