Question

QUESTION 20 Problem 201 For a project that investigates the average weight difference by gender of patients from the Mayo clink, the researcher collected a sample of 64 male patients and another sample of a 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 What is the probability of type I error? 4 points SA QUESTION 21 Problem 21) For protect that investigates the average wehfference by gender of patients from the Mayo clinic the researcher collected a sample of male patients and another sample of female. The researcher then cached the sample mean of male patients as 100lbs with a sample standard deviation of 20 lbs, and the sample of patients 140 is with a sample sandard deviation of 10 best them that the average weight of male patients more than that of a patient Awne une population standard deviation Given the pficance level qual lebo Uve population means we omale pilot be the population mean weight for female patients Question Stephendetive hypothesis Hoi H-120 od spoloh H170

Answer 1

36 touettion 20 Male : nie by a=160 ; Sia 2016 fende 72-1410 S2 = 10 db The probability of type I - error (which is called as Significance level Questional claim The average weight of male patient (Mi) is more than that of female patients ie, M, >l2 M, M >0 Ho: Mi-M2=0 Vs Hi: Milo (chim) - (160-140) - 16-5029 The test statistic: t-(2,-5) S3 of=92 The p-vaha= 0.0000. Decision & Reject the wall.