Thursday
September 18, 2014

Homework Help: statistics

Posted by neil on Sunday, June 12, 2011 at 8:17pm.

2. A researcher hypothesized that the pulse rates of long-distance athletes differ from those of other athletes. He believed that the runners’ pulses would be slower. He obtained a random sample of 10 long-distance 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 Jackson’s text.

e. Compute t obt

f. Should H0 be rejected? What should the researcher conclude?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - 2. A researcher hypothesized that the pulse rates of long-distance ...
statistics - a sample of 50 women is obtained and their heights (in inches) and ...
Probability and Statistics - A research psychologist believes that professional ...
statistics - Calculate and interpret a 95% confidence interval for the mean bp ...
Chemistry - a) An equilibrium exists between three chemical species in the ...
Physics - The speed of sound is about 340 m/s. Assume that when the motion ...
Physics - Each of two runners at either end of a 1907 m straight track jogs ...
English - Identify the Direct Object in the sentence. 9. Nevertheless, they know...
statistics - Composite ACT Scores Non-Athletes Athletes 25 21 22 22 27 21 19 29 ...
Physics - YOu are creating a transverse wave in a rope by shaking your hand from...

Search
Members