Posted by neil on Sunday, June 12, 2011 at 8:17pm.
2. A researcher hypothesized that the pulse rates of longdistance athletes differ from those of other athletes. He believed that the runnersâ€™ pulses would be slower. He obtained a random sample of 10 longdistance runners. He measured their resting pulses. Their pulses were 45, 45, 64, 50, 58, 49, 47, 55, 50, 52 beats per minute. The average resting pulse of athletes in the general population is normally distributed with a pulse rate of 60 beats per minute.
a. What statistical test should be used to analyze the data?
b. Is this a one or two tailed test?
c. What are H0 and Ha for this study?
d. Find tcv from appendix A in Jacksonâ€™s text.
e. Compute t obt
f. Should H0 be rejected? What should the researcher conclude?

statistics  PsyDAG, Monday, June 13, 2011 at 11:52am
c. If Ho: mean1 = mean2 and Ha: mean1 ≠ mean2, then use twotailed test. If Ha: mean1 < mean2, use onetailed test.
We do not have access to Appendix A.