Describe the sample data set and identify the variable

Assignment Help Algebra

Reference no: EM13473152

Since its removal from the banned substances list in 2004 by the World Anti-Doping Agency, caffeine has been used by athletes with the expectancy that it enhances their workout and performance. Many studies have been conducted to assess the effect of caffeine on athletes, but few look at the role ti plays in sedentary females. Researchers at the University of Western Australia conducted a test in which they determined the rate of energy expenditure (kilojoules) on 10 healthy, sedentary females who were non-regular caffeine users. Each female was randomly assigned either a placebo or caffeine pill (6mg/kg) 60 minutes prior to exercise. The subject rode an exercise bicycle for 15 minutes at 65% of their maximum heart rate, and the energy expenditure was measured. The process was repeated on a separate day for the remaining treatment. The mean difference in evergy expenditure (caffeine-placebo) was 18 kJ with a standard deviation of 19 kJ.

1) Describe the sample data set and identify the variable being measured

2) Which type of hypothesis test would be most appropriate for this set of data?

3) Describe the population from which your sample was obtained. What should be the value of the population parameter and why?

4) Do you think your data comes from a random sample? Why/why not?

5) What other condition must you check in order to perform the hypothesis test?

6) Describe the null and alternative hypothesis for your hypothesis test against the value

7) Determine the test statistic

8) Calculate the p-value for this hypothesis test

9) State your conclusion from this hypothesis test. What happens to the null hypothesis?

Reference no: EM13473152

Questions Cloud

Visit either the fedex or ups website to examine their : visit either the fedex or ups website to examine their approaches to selection and retention in different regions of

Write a function rule for the area of a rectangle whose : write a function rule for the area of a rectangle whose length is 6ft. more than its width?then find the area of a

How has hrl considered differences in the culture of top : visit a company like international airlines group the parent company of ba amp iberia airlines or shell oil company

Use steps of hypothesis testing b figure effect size for : do students at various universities differ in how sociable they are? twenty-five students were randomly selected from

Describe the sample data set and identify the variable : since its removal from the banned substances list in 2004 by the world anti-doping agency caffeine has been used by

Based on your own research how has each organizations and : on january 11 2001 the new york times wrote the companys chrysler division which lost united states market share in

Ue steps of hypothesis testing draw the distributions : evolutionary theories often emphasize that humans have adapted to their physical environment. one such theory

Describe how you would construct your organizations total : imagine that you are the hrl for a multinational company with operations in china vietnam the middle east the u.s. and

The wh meat-packing company must decide whether or not to : 1. in a regression analysis a residual is defined asa the difference between the actual value and the predicted value

User Account

All Pages