Question

3 pts Question 4 A school psychologist is interested in determining if children with attention deficit disorder (ADD) learn better if English literature is read to them rather than having them read the material themseves. A random sample of 10 sixth graders with ADD is selected and divided into two groups of 5 each. One of the groups has a story read to them (Listening Group) and the other reads the story themselves (Reading Group). A quiz on the story is given after each group has finished reading or hearing the story The following scores were obtained with 20 being a perfect score Reading Group Listening Group 8 10 7 12 6 What do you conclude, using a= 0052 tai? Reject the null hypothesis Retain the null hypothesis No answer text provided, O No answer text provided. 62310 O O

Answer 1

Answer: Reject the null hypothesis

Explanation:

Reading Group no= 5 Xi = 8.6 Listening Group 12=5 sample size: T2 = 12.2 sample mean: S sample standard deviation: Si = 5.8 S2=3.7 Ki-2 ** . Statistie,' t = Test 12.2 3 = -2.6117 ** Degrees of freedom = nith2-2 = 5+5-2 = P-value = 0.0310 → Since, the p-value (0.0310) is less than the significance level of d= 0.05, we reject the hull hypothenis.