User Account

All Pages

Construct the appropriate two by two tables

Assignment Help Basic Statistics
Reference no: EM132289099

A cohort study was undertaken to examine the association between high lipid level and coronary heart disease (CHD). Participants were classified as having either a high lipid level (exposed) or a low or normal lipid level (unexposed). Because age is associated with both lipid level and risk of heart disease, age was considered a potential confounder or effect modifier and the age of each subject was recorded. The following data describes the study participants: Overall, there were 11,000 young participants and 9,000 old participants. Of the 4,000 young participants with high lipid levels, 20 of them developed CHD. Of the 6,000 old participants with high lipid levels, 200 of them developed CHD. In the unexposed, 18 young and 65 old participants developed CHD.

  • Construct the appropriate two by two tables using the data given above.
  • Calculate the appropriate crude ratio measure of association combining the data for young and old individuals.
  • Perform a stratified analysis and calculate the appropriate stratum-specific ratio measures of association.
  • Do the data provide evidence of effect measure modification on the ratio scale?

Reference no: EM132289099

Questions Cloud

Compute the appropriate correlation coefficient : Before moving away to college, Lisa is warned abotu the high cost of parking tickets close to campus. To determine the validity of the warning
Benefits of constructing aircraft : My research question is "I wonder what are the benefits of constructing aircraft with advanced composite materials compared to conventional materials."
Mean and the standard deviation of the number of friends : Open this data set and obtain the mean and the standard deviation of the number of friends in the sample. Summarize these data.
Compare your negotiating skills as reflected : Compare your negotiating skills as reflected in your first journaling assignment and your second journaling assignment. What, if anything, has changed?
Construct the appropriate two by two tables : Construct the appropriate two by two tables using the data given above. Calculate the appropriate crude ratio measure of association combining the data
Is it permissible to use capital punishment on persons : Present what you see as the main argument from that source in standard form, with the premises listed above the conclusion.
Bank account to help cover the costs of university : Starting one month from? now, you need to withdraw ?$170 per month from your bank account to help cover the costs of your university education.
Compute the standard deviation of the proportion : 1. Assume the population proportion is 0.55. Compute the standard deviation of the proportion [SD()] for the following sample sizes (Use 4 decimal places).
Diabetes and glaucoma independent of race : Which is the best single measure of the association between diabetes and glaucoma independent of race?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Calculate the mean and standard deviation of each variable

Make a time plot of the mean scores, by hand. This is just a scatterplot of score against year. There is a slow linear increasing trend.

  How many different products were included in this analysis

How many different products were included in this analysis? Interpret your interval in this context

  According to the uw madison 2003-2004 factbook 11488 of the

according to the uw madison 2003-2004 factbook 11488 of the 24890 students enrolled at uw madison during that year were

  Does the process look to be in statistical control

The following sample information was obtained by taking four doughnuts per hour for twelve hours from Fawcett Bakery's doughnut process and weighing them.

  A commuter train from long island to new york city is

a commuter train from long island to new york city is scheduled to arrive at 807 am every weekday morning. the

  Describe the performance on a strength test

For each pair of variables, identify whether the pair is likely to have a positive correlation, a negative correlation, or no correlation.

  Linear correlation and linear regression

Linear correlation (presented in Session 5) and linear regression are closely related statistical concepts.

  Write methods that accept an array or list

Write methods that accept an array or list and returns lowest score, highest score, median score, average score and the standard deviation of the scores.

  What was the mean of the quiz scores

A student scored 494 points on a quiz, and the student's standard (or z) score was -2. The standard deviation of quiz scores was 29.

  Test an appropriate hypothesis and state conclusion

Test an appropriate hypothesis and state your conclusion. (Make sure to check any necessary conditions and to state a conclusion in the context of the problem.)

  After a suitable period of time the reduction in blood

a researcher has developed a new drug designed to reduce blood pressure. in an experiment 21 subjects were assigned

  Find the sample standard deviation

Estimating the sample standard deviation using normal score - Find the sample standard deviation?

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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