Question

y of IU 1 cup Score: 0.22 of 1 pt Question Help 10.3.31-T Amath teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the administrator of the exam, scores are normally distributed with 512. The teacher obtains a random sample of 1800 students, puts them through the review class, and finds that the mean math score of the 1800 students is 519 with a standard deviation of 117 Complete parts (a) through (d) below (d) Test the hypothesis at the 0.10 level of significance with n=350 students. Assume that the sample mean is still 519 and the sample standard deviation is still 117. Is a sample moan of 519 significantly more than 512? Conduct a hypothesis fest using the P-value approach. Find the test statistic Enter your answer in the answer box and then click Chock Answer Check Answer 2 parts remaining D G 658 PM 11/10/2019 DELL

Answer 1

given, 350 M=512 x = 519 S :- 117 220-10 Lest Find statistic to = . X-M SJ = 519-512 117 1350 S = 7 6.2539 = 1.1193 to to = 1.12 I - test statistic The Hypothesis, HoU=512 vs Hi el 512 . The costical value = trodia = toio, 349 = 1.2840 P. Value Appouch! The p. value = 0.131742 lo.name = 0.132 So, p. value = 01327 ve Accept Ho 2=0.10 10). level of significance at