In a study of copper deficiency in cattle, the copper values

(mg Cu/100 mL blood) were determined both for cattle grazing in an area known to have well-defined molybdenum anomalies (metal values in excess of the normal range of regional variation) and for cattle grazing in a nonanomalous area (“An Investigation into Copper Deficiency in Cattle in the Southern Pennines,” J. Agricultural Soc. Cambridge, 1972: 157–163), resulting in s for the 1 5 21.5 (m 5 48)

anomalous condition and for the nonanomalous condition. Test for the equality versus inequality of population variances at significance level .10 by using the P-value approach.