Salt-free diets are often prescribed to people with high blood pressure. The following data values were...

50.1K

Verified Solution

Question

Statistics

Salt-free diets are often prescribed to people with high bloodpressure. The following data values were obtained from anexperiment designed to estimate the reduction in diastolic bloodpres- sure as a result of consuming a salt-free diet for 2 weeks.Assume diastolic readings to be normally distributed.
(a) Calculate a 90% confidence interval for the meanreduction.
(b) Is there evidence that diastolic blood pressure is reduced byhaving salt-free diets, use Î± = 0.05.
Patients A. B. C. Â Â D. E. F. G. H
Before. 93. Â Â 106 87 92 102 95 88 110
After. 92. 102 89 92 101 96 88 105

Answer & Explanation Solved by verified expert

4.2 Ratings (513 Votes)

a From the Data 1 and Sd 23905 010 the degrees of freedom n 1 7The critical value 1895The Confidence interval is given by METhe Lower Limit 1 1602 2602The Upper Limit 1 1602 0602The 90 Confidence interval is 26020602b TheHypothesisH0 0 The test See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member