Answer Happy

The mean SAT score in mathematics is 592. The standard deviation of these scores is 41. A special preparation course claims that the mean SAT score of its graduates is greater than 592. An independent researcher tests this by taking a random sample of 23 students who completed the course the mean SAT score in mathematics for the sample was 614 Assume that the population is normally distributed. At the 0.01 level of significance, can we conclude that the population mean SAT score for graduates of the course is greater than 5927 Assume that the population standard deviation of the scores of course graduates is alvo 41 Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places, and round your responses as specified below. (If necessary consulta list of focus.) (a) state the null hypotheses H, and the alternative hypothesis Hill P H x $ (b) Determine the type of test statistic to use - (Choose one) (C) Find the value of the test statistic (Round to three or more decimal places.) CO (d) Find the critical value. (Round to three or more decimal places:) x 5 ?