A researcher hypothesized that individuals who listen to classical music will score differently from the general population on a test of spatial ability. On a standardized test of spatial ability, u = 58. A random sample of 14 individuals who listen to classical music is given the same test. Their scores on the tst are 52, 59, 63, 65, 58, 55, 62, 63, 53, 59, 57, 61, 60, 59
a. is this one or two tailed test?
b. What are Ho and Ha for this study?
c. Compute t obt.
d. What is tcv?
e. should Ho be rejected? What should the researcher conclude?
f. determine the 95% confidence interval for the population mean, based on the sample mean.