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 = 520. The teacher obtains a random sample of 2200 students, puts them through the review class, and finds that the mean math score of the 2200 students is 526 with a standard deviation of 114. Complete parts (a) through (d) below. ..... (a) State the null and alternative hypotheses. Ho: H 520 , H1: H 520 (b) Tost the bynothesis at the -0 10 level of significance Is a mean math score of 526 statistically sianificantly bigher than 5202 Conduct a

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