4. In a January 2013 safety announcement, the Food and Drug Administration warned drug manufacturers that the recommended dose of the widely prescribed insomnia drug zolpidem should be halved for women. The warning came after the pharmacokinetics trials found that 15% of 250 women and 3% of 250 men who had taken the recom- mended dose of zolpidem still had enough drug in their blood 8 hours later to cause impairment. Do the data support the claim that women are more likely than men to have impairing zolpidem levels 8 hours after dosing? Conduct a significance test for comparing two proportions with a = 0.05