A math 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 u = 514. 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 521 with a standard deviation of 113. Complete parts (a) through (d) below. A. Ho H=514, H,: u>514 O B. Ho: µ<514, H1: u> 514 OC. Ho: u>514, H1: u#514 O D. Ho u=514, H,: p#514 (b) Test the hypothesis at the a = 0.10 level of significance. Is a mean math score of 521 statistically significantly higher than 514? Conduct a hypothesis test using the P-value approach. Find the test statistic. to = (Round to two decimal places as needed.)
A math teacher claims that she has discovered a review course that increases the scores of a student on the math portion of the college entrance exam. Based on data from the administrator of the Sam, scores are
A math teacher claims that she has discovered a review course that increases the scores of a student on the math portion of the college entrance exam. Based on data from the administrator of the exam, scores are normally distributed with mean = 514. The teacher obtains a random sample of 1800 students, puts them through the review class, and finds that the main mess score of the one 800 students is 521 with a standard deviation of 113.
Test the hypothesis at the = 0.10 level of significance. Is a mean math score of 521 statistically significantly higher than 514? Conduct a hypothesis testing using the P value approach. Find the test statistic. Round to two decimal places as needed.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images