IQ: Scores on a certain IQ test are known to have a mean of 1'00. A random sample of 64 students attend a series of coaching classes before taking the test. Let p. be the population mean IQ score that would occur if every student took the coaching classes. The classes are successful if p. 2} 100. A test is made of the hypotheses H0: [1 = 100 versus H1 2 p I} 100. Consider three possible conclusions: (i) The classes are successful. {ii} The classes are not successful. (iii) The classes might not be successful. which of the three conclusions is best if HI) is not rejected? The best conclusion is . Assume that the classes are not successful. Is it possible to make a Type I error? Explain. Yes 1' , a type I error _ possible. The classes are not successful when the null hypothesis is m