BTM7106-8-2

A researcher hypothesizes that indivudals who listen to classical music will score differently from the general population on a test of spatial ability. On a standarized test of spatial ability, u=58. A random sample of 14 individuals who listen to classical music is given the same test. Their scores are 52, 59, 63, 65, 58, 55, 62, 63, 53, 59, 57, 61, 60, 59. Is this a one tailed or two tailed test? What are the null and alternative hypotheses? Compute t obt and t cv. Should H o be rejected? What should the researcher conclude? Determine the 95% confidence interval?