Could this study have used the concept of blinding

Reference no: EM131009537

1. (Hypothetical) In order to assess the effectiveness of a new fertilizer, researchers applied the fertilizer to the tomato plants on the west side of a garden but did not fertilize the plants on the east side of the garden. They later measured the weights of the tomatoes produced by each plant and found that the fertilized plants grew larger tomatoes than did the nonfertilized plants. They concluded that the fertilizer works.

(a) Was this an experiment or an observational study? Why?

(b) This study is seriously flawed. Use the language of statistics to explain the flaw and how this affects the validity of the conclusion reached by the researchers.

(c) Could this study have used the concept of blinding (i.e., does the word "blind" apply to this study)? If so, how? Could it have been double-blind? If so, how?

Reference no: EM131009537

Questions Cloud

A political debate between two politician : A political debate between two politicians. One claims that the average income of all American workers is $74,802; the others say that American workers, on average make only $62,149. Is it possible for both these politicians to be correct? If so, exp..

Calculating the median requires data : Calculating the median requires data of at least what scale?

The mean of the standard normal distribution : The mean of the standard normal distribution is 1.0.

Create a case that is totally fictional : Write an ethical analysis of the case, focusing on the issue you choose by considering any relevant facts, ethical values and principles as well as the consequences of the different possible resolutions to the ethical issue that you have identifie..

Could this study have used the concept of blinding : They later measured the weights of the tomatoes produced by each plant and found that the fertilized plants grew larger tomatoes than did the nonfertilized plants. They concluded that the fertilizer works. Was this an experiment or an observationa..

Find the x-coodinate of the local maximum : Find the absolute minimum value of the following function on the interval [0,2]. f(x) = x2 -4.6x + 1. Find the x-coodinate of the local maximum of f(x)= x3 - 2.1x2 -1.7x.

Sport promotions currently taking place in the sport : List & discuss at least 3 different sport promotions currently taking place in the sport business realm. You may need to reference team websites, advertisements, and articles as necessary. For each promotion mentioned, consider the following:

Is convincing evidence that this procedure effective cure : After this time his nail grew out and the fungus was gone. Using the language of statistics, what kind of evidence is this? Is this convincing evidence that this procedure is an effective cure of toenail fungus?

The privatization of solid waste management : Research an article related to the privatization of solid waste management within a city in the United States or another country. You can utilize resources relating to the topic from your textbook, online journal articles, CSU Online Library,and/or I..

User Account

All Pages