In: Statistics and Probability
In a random sample of males, it was found that
19
write with their left hands and
221
do not. In a random sample of females, it was found that
60
write with their left hands and
457
do not. Use a
0.01
significance level to test the claim that the rate of left-handedness among males is less than that among females. Complete parts (a) through (c) below.
what is the z value and P value and the 98% confidence interval?