• A lumber mill is tested for consistency by measuring the variance of board thickness. The target accuracy is a variance of 0.0035 square inches or less. If 24 measurements are made and their variance is 0.006 square inches, is there enough evidence to reject the claim that the standard deviation is within the limit at =.01?
• Assume that a 95% confidence interval for the mean is 10.0 <u<13.0. The null hypothesis H^{_o :}u =11.0 at =0.05 would