Question

4 points Problem 25) For a project that investigates the average weight difference by gender of patients from the Mayo clinic the researcher collected a sample of 64 male patients and another sample of 36 female patients. The researcher then calculated the sample mean of male patients as 160 lbs with a sample standard deviation of 20 lbs, and the sample mean of female patients as 140 lbs with a sample standard deviation of 10 lbs. Test the claim that the average weight of male patients is more than that of female patients. Assume unequal population standard deviation. Given the significance level equals 5. (Question), Step 5: Conclusion: True/False There is enough evidence to conclude that the average weight of male patients is more than that of the female patients at a =0.05. O True False

Answer 1

mean Given? male :- CF)= 160 lbs st.den. (5.) - 20 lbs Sample size (n.) = 64 female: mean ( X = toder. (sas = sample spe (na) a 36 L = 0.05 140 lbs 10 lbs Here, assume unequal population standard deviation. test hypothesis: Ho.lt, Ma H: et, le test statistici F 2 160-140 = 6.656 S₂ 2012 + (10² и п 36 xavour then conclude p-value = 0.0000 povalue is less than that rejeet Ho. Answer: True