9. A one-tailed hypothesis test with the t statistic Antisocial personality disorder (ASPD) is
characterized by deceitfuiness, reckless disregard for the well-being of others, a diminished
capacity for remorse, superficial charm, thrill seeking, and poor behavioral control. ASPD is not
normally diagnosed in children or adolescents, but antisocial tendencies can sometimes be
recognized in chidhood or early adolescence, James Blair and his colleagues have studied the
ability of children with antisacial tendencies to recognize facial expressions that depict sodness,
happiness, anger, disgust, fear, and surprise, They have found that children. with antisocial
tendencies have selective impairments, with significantly more difficulty recognizing fearful and
sad expressions; Suppose you have a sample of 3010 -year-old children with antisocial
tendencies and you are particularly interested in the emotion of sadness. The average 10year-old
has a score on the emotion recognition scale of 8.95 . (The higher the score on this scale, the
more strongly an emotion has to be displayed to be correctly identified. Therefore, higher scores
indicate greater ditficulty recognizing the emotion). Assume that scores on the emotion.
recognition scale are normally distributed. You believe that children with antisecial tendencies will
have a harder time recognizing the emotion of sadness (in other words, they will have higher
scores on the emotion recognition test). What is your null hypothesis stated using symbols? What
is your alternative hypothesis stated using symbols? This is a tailed test. Given what you know,
you will evaluate this hypothesis using a statistic. Using the Distributions tool, locate the critical
region for a=0.05.Problem Set: Chapter 09 Introduction to the t Statistic In order to use the t
distribution, you will first need to determine the degrees of freedom (df) for a=0.05. The degrees of
freedom (df) is critical value of t is Your sample of 10 -year-old children with antisocial tendencies
has an average score of 9.65 with a standard deviation.3f 3.47 . Calculate the t statistic. To do
this, you will first have to calculate the estimated standard error. The estimated standard error is
The t statistic is (Hint: For the most precise results, retain four significant figures from your
calculation of the standard error to calculate the t statistic. Round your final answer to four decimal
places, and then round it again to two decimal places for your answer selection.) The t statistic lie
in the critical region. Therefore, you reject the null hypothesis. Based on the results of this test,
there enough evidence to conclude that children with antisocial tendencies have greater difficulty
recognizing sadness than do children without antisocial tendencies:.
9 A onetailed hypothesis test with the t statistic Antisoc.pdf
1. 9. A one-tailed hypothesis test with the t statistic Antisocial personality disorder (ASPD) is
characterized by deceitfuiness, reckless disregard for the well-being of others, a diminished
capacity for remorse, superficial charm, thrill seeking, and poor behavioral control. ASPD is not
normally diagnosed in children or adolescents, but antisocial tendencies can sometimes be
recognized in chidhood or early adolescence, James Blair and his colleagues have studied the
ability of children with antisacial tendencies to recognize facial expressions that depict sodness,
happiness, anger, disgust, fear, and surprise, They have found that children. with antisocial
tendencies have selective impairments, with significantly more difficulty recognizing fearful and
sad expressions; Suppose you have a sample of 3010 -year-old children with antisocial
tendencies and you are particularly interested in the emotion of sadness. The average 10year-old
has a score on the emotion recognition scale of 8.95 . (The higher the score on this scale, the
more strongly an emotion has to be displayed to be correctly identified. Therefore, higher scores
indicate greater ditficulty recognizing the emotion). Assume that scores on the emotion.
recognition scale are normally distributed. You believe that children with antisecial tendencies will
have a harder time recognizing the emotion of sadness (in other words, they will have higher
scores on the emotion recognition test). What is your null hypothesis stated using symbols? What
is your alternative hypothesis stated using symbols? This is a tailed test. Given what you know,
you will evaluate this hypothesis using a statistic. Using the Distributions tool, locate the critical
region for a=0.05.Problem Set: Chapter 09 Introduction to the t Statistic In order to use the t
distribution, you will first need to determine the degrees of freedom (df) for a=0.05. The degrees of
freedom (df) is critical value of t is Your sample of 10 -year-old children with antisocial tendencies
has an average score of 9.65 with a standard deviation.3f 3.47 . Calculate the t statistic. To do
this, you will first have to calculate the estimated standard error. The estimated standard error is
The t statistic is (Hint: For the most precise results, retain four significant figures from your
calculation of the standard error to calculate the t statistic. Round your final answer to four decimal
places, and then round it again to two decimal places for your answer selection.) The t statistic lie
in the critical region. Therefore, you reject the null hypothesis. Based on the results of this test,
there enough evidence to conclude that children with antisocial tendencies have greater difficulty
recognizing sadness than do children without antisocial tendencies:
