3. Sprint would like to investigate if women average more minutes per week talking on their cell phones than men. Minutes per month for men and women are normally distributed with unequal variances. Ten men (2) were sampled and found to average 330.70 minutes talking on their cell phones, which varied by 161.2255 minutes. Twelve women (1) were sampled and found to average 461.10 minutes talking on their cell phones, which varied by 90.8149 minutes. Perform a hypothesis test, at the 0.01 level of significance, to determine if women average more minutes per week talking on their cell phones than men 4. A Pharmaceutical firm has requested that a medical doctor observe whether a new version of a drug actually shortened the length of time it takes for a patient to feel the benefits of the medication. It can be assumed that the reaction time for the drug is normally distributed, with equal variances. The doctor administered the drug and its new version to independent random samples of her patients. New(1) 10 Old(2) 10 Sample size 65 min. 80 min. Mean Std. Dev. 14 min. 10 min. If the new version is more costly to manufacture than the old version, what advice should the doctor give the pharmaceutical company? Use the 0.01 level of significance to test if the reaction time of the new version is significantly faster than the old version.