is studying the sell image okers as me Dy psychologist the

Last updated: 6/1/2023

is studying the sell image okers as me Dy psychologist the self image SI score from a personality inventory She would like to examine the mean SI score for the population of all smokers Previously published studies have indicated that the mean SI score for the population of all smokers is 80 and that the standard deviation is 12 but the psychologist has good reason to believe that the value for the mean has changed She plans to perform a statistical test She takes a random sample of SI scores for smokers and computes the sample mean to be 90 Based on this information complete the parts below a What are the null hypothesis and the alternative hypothesis II that should be used for the test Ho O H 0 b Suppose that the psychologist decides not to reject the null hypothesis What sort of error might she be making Choose one c Suppose the true mean SI score for all smokers is 80 Fill in the blanks to describe a Type I error A Type I error would be Choose one Choose one Choose one the hypothesis that u is Choose one when in fact is H 0 0 X XI OSO 0 0 4