Answer Happy

In Pennsylvania the average IQ score is 102.3. A school superintendent claims that the students in her school district have an IQ different than the average of 102.3. She selects a random sample of 37 students and finds the mean of the test scores is 106.4 with standard deviation 14. Test the claim at a == 0.10. [10 points) (a) Write null and alternative hypothesis and determine whether the hypothesis test is left-tailed, right-tailed, or two tailed. (b) Test statistic (c) Test hypothesis using classical method and make a conclusion (d) Test hypothesis using p-value method and make a conclusion. (e) Write your conclusion for alternative hypothesis