Describing whether smoking is confounder

Assignment Help Basic Statistics
Reference no: EM1315002

Q1)i) A study of the relationship between exercise and heart attacks is conducted among women who don't smoke.  Describe whether gender is confounder.

ii)  A case-control study of relationship between liver cirrhosis among both non alcoholics and alcoholics. Describe whether smoking is confounder.

iii) Interpret results of the following studies

Odds ratio of 1.2 (95% confidence interval: 0.8-1.5) is found for association of low socioeconomic status and occurrence of obesity.

Reference no: EM1315002

Questions Cloud

Questions based on stocks and debts : Multiple choice questions on stocks and debts - Which of the following statements is CORRECT?
How far to the right of where the string : 50 g ball travelling at 25.0 m/s is bounced off a brick wall and rebounds at 22.0m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.51 ms, what is the average acceleration of the ball throughout this time inter..
Transferring of t-lymphocytes in graft versus host disease : Transfer of the immunologically competent T-lymphocytes from a donor into host expression different MHC antigens can have severe consequences, causing a fatal syndrome known as graft versus host disease (GVH).
Assuming the industry is a cournot duopoly : Illustrate what will be the price of this new drink in the long run, assuming the industry is a Cournot duopoly.
Describing whether smoking is confounder : A case-control study of relationship between liver cirrhosis among both non alcoholics and alcoholics. Describe whether smoking is confounder.
Claiming using chi-square test : A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location.  Research question:  At  α  =  . 05, does vehicle type vary by mall location?
What is the mass of the ball : A 71 kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12 m. If the skier's speed at point A is 7.0m/s , what is the normal force exerted by the snow on the skier at point B? Ignore fricti..
What is the relationship between marginal revenue : Illustrate what is the relationship between marginal revenue also marginal cost as the firm increases output?
Computation of weighted average cost of capital : Computation of weighted average cost of capital with given data and how does the company's debt to equity mix impact this cost of capital

Reviews

Write a Review

Basic Statistics Questions & Answers

  Computing probability-values

A committee of three is selected at random from a set consisting of five Democrats, eight Republicans, and two Independents.

  Normal frequency distribution

In a normal frequency distribution, 32% of the cases:

  Analysis of variance and its assumptions

Is there evidence of violations of the usual ANOVA assumptions of equal variances and normal populations? Set up and perform appropriate TESTS at the α = 0.05 level of significance.

  Determining the p-value

At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the  p- value.

  Possibility of subcommittees

If they must form an ethics subcommittee of 4 members, how many different subcommittees are possible?

  Hypothesis test for one population mean

Report the t-value, whether you accept or reject Ho, and whether the difference was significant in a brief sentence.

  Population mean equivalent

The upper limit of a 95% confidence interval for the population mean would equal:

  Concept of probabilities

Be sure to include information about how you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals.

  Hypothesis test-one sample mean

Test the claim that for the adult population of one town, the mean annual salary is given by μ = $30,000.

  Variance using given probability distribution

What are the expected value and variance of the following probability distribution?

  Number of degrees of freedom for chi-square distribution

The number of degrees of freedom for the appropriate chi-square distribution in a test of independence is:

  Graph of the probability density function

Show the graph of the probability density function for flight time.

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