Confidence interval for mean difference in blood pressure

Assignment Help Basic Statistics
Reference no: EM13102735

A clinical trial is planned to compare an experimental medication designed to lower blood pressure to a placebo. Before starting the trial, a pilot study is conducted involving 10 participants. The objective of the study is to assess how systolic blood pressure changes untreated overtime. Systolic blood pressures are measured at baseline and again 4 weeks later. Compute a 95% confidence interval for the mean difference in blood pressure over 4 weeks.

Baseline 120 145 130 160 152 143 126 121 115 135

4 weeks 122 142 135 158 155 140 130 120 124 130

Reference no: EM13102735

Questions Cloud

Describe concepts-terminology diversity and communication : Write down 700 word paper in which you describe the following main concepts and terminology: Organizational Culture & Behavior, Diversity and Communication.
Probability of selecting marbles : A jar contains 12 marbles, 5 of which are blue and 7 of which are red. If 4 marbles are chosen at random and without replacement, what is the probability of selecting 3 blue ones and 1 red one?
Issue trying to determine what equation to use : In this problem I am having an issue trying to determine what equation to use to solve. Is this a one or two way ANOVA or should I just use a z-test to solve?
Probability distribution for radio station : A radio station that plays classical music has a "By Request" program each Saturday night. The percentage of requests for composers on a particular night are listed below:
Confidence interval for mean difference in blood pressure : Systolic blood pressures are measured at baseline and again 4 weeks later. Compute a 95% confidence interval for the mean difference in blood pressure over 4 weeks.
Probability in birth weight between babies : Consider babies born in the "normal" range of 37 - 43 weeks gestational age. What is the probability that the birth weight of a randomly selected baby of this type:
True mean total cholesterol levels in children : Generate a 95% confidence interval for the true mean total cholesterol levels in children.
When americans-europeans email frustration frequently ensues : Explain why, according to Weiner, is this so? Write down some examples of email differences which cause frustration?
Combined dimension in excess : What is the probability that an assembly chosen at random will have a combined dimension in excess of 262?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Detailed explanation to correlation analysis

The following data refers to gross earned income, in thousands of dollars per year, and level of taxation on that income.

  The number of units produced on the afternoon shift larger

Clark Heter is an industrial engineer at Lyons Products. He would like to conclude whether there are more units produced on the afternoon shift than on the day shift. A sample of 54 day-shift workers showed that the mean number of units produced w..

  Calculating expected number of interruptions per day

Calculate expected number of interruptions per day. Calculate standard deviation.

  Analysis of data sets assignment

Analysis of data sets assignment

  Theory and poisson process

Using the basic informaion from above: If there are no additional customers waiting (or walking up to the counter) when a particular customer begins her transaction, what is the probability that no one will be waiting in line when her transaction ..

  Strategies to increase validity of the findings

What additional strategies (up to 3) you would propose that may increase validity of the findings.

  Determine the p-value

At.01 significance level, is there difference in mean number of times men and women order take-out dinners in month? Determine the p -value?

  Gauging stockholder views about employee benefits

What is wrong with gauging stockholder views about employee benefits by mailing a questionnaire that IBM stockholders could complete and mail back?

  Population standard deviations - hypothesis test

Hypothesis test for the difference between two means - Assume the population standard deviations are not the same. At the 0.05 significance level, is there a difference in the mean waiting time?

  Difference in the mean flight times among three airlines

Use the .05 significance level and the 5 step hypothesis testing process to check if there is a difference in the mean flight times among the three airlines.

  Impact of campaign film on attitude toward political person

The impact of campaign film on attitudes toward a political candidate was investigated. Prior to showing the film, the attitudes of 15 people toward the candidate were assessed using a political likability scale.

  Test statistic and critical values

Calculate the appropriate test statistic to test the hypotheses related to the concern and test at 5% and 1% (indicate which test you are performing; show the hypotheses, the test statistic and the critical values and mention whether one-tailed or..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd