In addition to the clinical sample being tested, researchers would also run the assays on three...

In addition to the clinical sample being tested, researchers would also run the assays on three additional samples: uninfected human cells (human control), RNA provided by the CDC that matched parts of the SARS-CoV-2 genome (virus control) and “samples” containing just water. Why were those controls included (what would they show the researchers, and how would the results of the controls affect the interpretation of the outcome?). Was each considered a positive or a negative control?

Expert Solution

The use of control is to study one factor at a time , it is used to interpret the results by comparing with the test samples. It is used to minimize the changes in all other variables except the one being tested.

For example : a control is kept to compare the colour change in biochemical tests, it helps to conclude that whether the expected colour change happened after specific period of incubation.

Positive control:

It is used to detect or show that the result of the test should be in the specific form. Positive controls are kept in the test kits to analyse the result. It is like the experiment with the known result, used to compare the results of the test or experiment going on. In other words it shows that the test results should be in the specific form.

Negative control:

It does not show any change during experiment and it won’t be treated. It show the way in which the results should not be .It is used to compare the test group. It is provided with tests kits to predict whether the samples show positive or negative results.

If any change occurs alike positive control it is considered positive result and if there is no change it is taken as negative.

Thus controls are kept to compare the result.

In the question given above

positive control -RNA provided by the CDC that matched parts of the SARS-CoV-2 genome (virus control)

Negative control - uninfected human cells

control - water

If the result is positive for SARS-COV- genome it shows result alike positive control

If the result is negative it shows no result.

I love’d to hear your feedback and Rating. If you like the answer please give me a positive rating, which will boost me more. Thank you.

gladiator answered 1 year ago

(2) We have studied auctions being run by sellers, but there are also auctions run by...

(2) We have studied auctions being run by sellers, but there are also auctions run by buyers. These are called reverse auctions or procurement auctions. Suppose that a company wants to buy one unit of a good. This company announces that they will run a second price procurement auction. The company will collect offers to sell one unit of the good from each of a group of firms and will buy the good from the firm that offers to sell...

Two new mathematics learning techniques are being tested. The researchers are unsure which one, if any,...

Two new mathematics learning techniques are being tested. The researchers are unsure which one, if any, will be better. Two hundred students were randomly selected from a population. Ninety of them were randomly assigned to use Technique A, and 110 of them were randomly assigned to use Technique B. Each student spent 30 minutes learning the technique to which they were assigned, and then were asked to complete a task. The time to complete the task was recorded, in seconds....

A new model compact car is being tested for gasoline consumption. A random sample of 40...

A new model compact car is being tested for gasoline consumption. A random sample of 40 such cars were tested at the sea level and found to get an average of 36.2 m/g (miles per gallon) with a sample standard deviation of 4.8 m/g. Another random sample of 35 such cars were tested one mile above the sea level in Denver, CO., and found to get an average of 31.5 m/g with a sample standard deviation of 5.5 m/g. At...

what is the solution of this code? Also how would I run it in python to...

what is the solution of this code? Also how would I run it in python to check? q = Queue() q.enqueue(10) q.enqueue(12) q.enqueue(15) for i in range(len(q)): → if len(q) % 2 == 0: → → q.enqueue(q.dequeue()) → else: → → q.dequeue() print(q)

Use a two-tailed independent sample t-test to answer this question. A new drug is being tested...

Use a two-tailed independent sample t-test to answer this question. A new drug is being tested to see if it reduces the number of backaches. Do these samples of number of monthly backaches from eight volunteers who are taking the drug and eight who are not taking the drug show a significant reduction in the mean number of monthly backaches (α= 0.05)? Identify the hypothesis statements, test statistic, p-value, and your decision. Also, construct and report the 95% confidence interval...

Being new to the business, the company is also unaware of how the purchase process would...

Being new to the business, the company is also unaware of how the purchase process would be followed. You as a financial service provider, help them in what procedure to follow in the purchasing process of inventory and also guide them on how does their approach of purchasing change during this Pandemic Covid-19 situation?

3. Three different treatments for hypertension (high blood pressure) are being tested. A medical researcher takes...

3. Three different treatments for hypertension (high blood pressure) are being tested. A medical researcher takes volunteers and randomly assigns them into groups taking treatment A, B, and C. The reduction in blood pressure is measured for each patient with the following results: > d patient treatment reduction 1 1 A 7.0 2 2 A 7.9 3 3 A 5.0 4 4 A 8.3 5 5 A 3.3 6 6 A 2.8 4 7 7 A 3.9 8 8 A...

A) Out of three soil types tested (Sand, Greenhouse Mix, and Field Soil), which would be...

A) Out of three soil types tested (Sand, Greenhouse Mix, and Field Soil), which would be expected to have the highest and which would have the lowest organic matter content? Why? B) Knowing what you do about soil physical and chemical properties, which of the three soil types do you think would be the best for plant growth in a natural environment? Why? C) Why is knowing the organic matter content of the soil important to a researcher in soil...

Is there an R code that would allow me to run a random sample 10,000 times...

Is there an R code that would allow me to run a random sample 10,000 times without having to run the code created individually? I have completed the first two tasks, but I do not know if R has a repeat code that would speed things up. Now using the “Minutes” column generate a random sample size of 5. (THIS HAS ALREADY BEEN COMPLETED BY ME. JUST ANSWER THE QUESTION CONCERNING THE THIRD ONE AND THE R CODE). Calculate the...

Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of...

Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of 20 people who used the programs provided the following data. Program A B C 520 450 600 400 520 610 490 400 560 510 440 490 490 460 590 640 370 630 550 570 Use the Kruskal-Wallis test to determine whether there is a significant difference among the three test preparation programs. Use α = 0.05. H0: All populations of test scores are identical....

Question