In an experiment to compare the tensile strengths of i = 6 different types of copper wire, j = 5 samples of each type were used. the between-samples and within-samples estimates of σ2 were computed as mstr = 2637.3 and mse = 1095.2, respectively. use the f test at level 0.05 to test h0: μ1 = μ2 = . . = μ6 versus ha: at least two μi's are unequal. calculate the test statistic. (round your answer to two decimal places.) f =

The results of huy's eye exam show that he is nearsighted. which explanation should huy expect to hear? "you need convex lenses to shorten the distance that light takes to focus in your eyes." "you need concave lenses to shorten the distance that light takes to focus in your eyes." "you need convex lenses to lengthen the distance that light takes to focus in your eyes." "you need concave lenses to lengthen the distance that light takes to focus in your eyes."