How, if at all, does caffeine intake affect hormone levels in women

(1 pt) How, if at all, does caffeine intake affect hormone levels in women? Lucero et al.(2001) report a study involving a sample of 498 women from the general population aged between 36 and 45. The women each completed a questionnaire, including items on caffeine intake, and provided a blood sample collected during the early phase of the menstrual cycle. We focus here on the level of estradiol(E2), and how that may depend on daily caffeine intake (in mg per day). Suppose the scatter plot of the logarithm of the estradiol level(Y)against daily caffeine intake(X)appeared as below:A linear regression model fitted to the above scatter plot isY=3.3369+0.000591XJennifer Lucero, Bernard L. Harlow, Robert L. Barbieri, Patrick Sluss, Daniel W. Cramer (2001): Early follicular phase hormone levels in relation to patterns of alcohol, tobacco, and coffee use. Fertility and Sterility 76, Issue 4, 723–729.Part a)Suppose one of the subjects reported a daily caffeine intake of 141.94 mg/day and had a recorded log(E2)level of 3.4. Compute the residual for this observation, to two decimal places.Part b)Suppose the ANOVA table for the regression is as below:SourceCaffeineErrorTotalDoFSS6.165.64711.807MS(i)(ii)FProvide the missing entries, to two decimal places.(i):(ii):Part c)Based on the above information, we wish to test the null hypothesis that log(E2)level does not depend linearly on daily caffeine intake. Provide the test statistic that would appear in the ANOVA table, to two decimal places.Part d)If testing at the 1% significance level, would you reject or not reject the null hypothesis that logE2level does not depend linearly on daily caffeine intake? A. Reject B. Not reject

 

CLICK HERE TO ORDER A SIMILAR PAPER

We pride ourselves in writing quality essays

CLICK HERE TO CONTACT US

Lets Start Working

Plagiarism Free

We use anti-plagiarism software to ensure you get high-quality, unique papers. Besides, our writers have a zero plagiarism mentality

On Time Delivery

Your essay will be delivered strictly within the deadline.  If you have an urgent order, we can do it!

Money Back Guarantee

We offer warranty service, including free revisions, and a right to request a refund incase your expectations are not met!

THE BEST PAPER WRITER HELPER

Our Advantage

  • Say “NO” to plagiarism – FREE plagiarism report as an addition to your paper
  • The lowest prices that fit excellent quality
  • Authorship – you are the one who possesses the paper. We DO NOT re-sale or re-use any of them.

OUR PAPER WRITER HELPER GOODIES

Our Freebies

  • Free Cover Page
  • Free Revisions
  • Free Reference Page
  • Free 24/7 support

Pin It on Pinterest

Share This