[ . webwork.ucalgary.ca A 2008 study investigated the effects of two different doses of testosterone on hair growth in post-menopausal women. Each woman was randomized to receive either the low dose (150ug) or the high dose (300ug) of testosterone. Subsequently, the amount of hair growth was recorded as either normal or increased. Remaining time: 178:05 (min The results of the study are presented in the table below. Note: you can copy and paste this table directly into StatCrunch. Increased hair growth Normal hair growth Low dose 32 235 High dose 63 224 (a) (Worth 25%) What is the correct null hypothesis? A. There is an association between testosterone dose and hair growth in post-menopausal women. B. Testosterone dose and hair growth in post-menopausal women has a p-value Test statistic) OB. P(x'd/-2 Test statistic) OD. P(X'a/_4 Test statistic) OF P(x dy_1