Describe ways in which test groups might not representative

Assignment Help Basic Statistics
Reference no: EM13951088

Assume that you work for the Food and Drug Administration. A pharmaceutical company has applied for approval to market a new arthritis medication. The research involved a test group that was given the medication and another test group that was given a placebo.

Respond to the following:

• Describe some ways in which the test groups might not be representative of the population of people with arthritis.

• If the company itself paid for or conducted its own research, would you have any concerns? Why or why not?

• If the study was not conducted as a blind or a double-blind test would you have any concerns? Why or why not?

Reference no: EM13951088

Questions Cloud

Calculate f and make decision about whether model useful : Below is a partial multiple regression ANOVA table. Test the overall usefulness of the model at italic alpha =.01. Calculate F and make your decision about whether the model is useful for prediction purposes.
Needs to be entered into a new database : Brian has a list of customers that needs to be entered into a new database. Before Brian can begin entering records into a database, he must first A. create a form to display the customer's information. B. enter information into an Excel spreadsh..
Question on setting up supplier records : After you have finished setting up customer records for The Digital Village, Alonso asks you to perform the following steps in MYOB - identify the tab that is part of the window that appears after those steps.
Formulate this problem as language : Consider the problem of testing whether a Turing machine M on an input w ever attempts to move its head left when its head is on the left-most tape cell.
Describe ways in which test groups might not representative : Describe some ways in which the test groups might not be representative of the population of people with arthritis. If the company itself paid for or conducted its own research, would you have any concerns? Why or why not?
Devise a turing machine with input given in unary notation : Devise a Turing machine with input given in unary notation (i.e., a string of n 1's denotes the integer n, and numbers are delimited by 0's) such that the machine produces the following output:
Write a program that reads a string from the keyboard : Write a program that reads a string from the keyboard and tests whether it contains a valid date. Display the date and a message that indicates whether it is valid.
A turing machine for f(x)=2x : Construct a turing machine to compute the product x*y of any two positive integers x and y.
Write a program that asks a user for a file name and prints : Write a program that asks a user for a file name and prints the number of characters, words, and lines in that file.

Reviews

Write a Review

Basic Statistics Questions & Answers

  A fair 20-sided die is rolled 120 times and the value of

a fair 20-sided die is rolled 120 times and the value of chi-square is computed using expected counts of 6 for each

  Sports fans tune to a local sports talk radio station

sports fans tune to a local sports talk radio station according to a poisson process with the rate of three fans every

  What is the probability that a person planned

Out of 1000 respondents to a survey, 250 people planned to purchase a TV of which 200 actually purchased and 50 did not actually purchase. 750 people did not plan to purchase at TV, of which 100 actually purchased and 650 did not actually purchase.

  Null-alternative hypotheses to test research hypothesis

Specify the appropriate null and alternative hypotheses if we wish to test the research hypothesis that the mean GHQ score for all employed men exceeds 10.

  Creating a flow diagram for entire process

Create a flow diagram for entire process. Include flow paths for students (solid lines) and prescriptions (dashed lines).

  A sociologist found that in a sample of 50 retired men the

a sociologist found that in a sample of 50 retired men the average number of jobs they had during their lifetimes was

  Before receiving the result the physician assigned his

the rapid test is used to determine whether someone has hiv the virus that causes aids. the false-positive and

  Use this information about the overhead reach distances of

use this information about the overhead reach distances of adult females mean 205.5 cm sd 8.6 cm and over head reach

  The best predictor of cumulative gpa

Among the variables high school percentile, ACT English score, ACT math score, and ACT composite score, identify the one that appears to be the best predictor of cumulative GPA. Explain your reasoning.

  Causal relationship between treatment and outcome

Researcher has 100 test subjects to split into his treatment and control groups. In order to prove any causal relationship between treatment and outcome, he should:

  F-test used in the analysis of variance

The F test is used in Analysis of Variance (ANOVA). When would a researcher use an ANOVA? Explain (one paragraph in length).

  Mean and variance-binomial distribution

A television station estimates that 50% of college students watch the super bowl. For a sample of 120 students selected at random, what is the mean and variance of the number of students who watch the game?

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