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Arisa [49]
2 years ago
14

a chemist for a paint company conducted an experiment to investigate whether a new outdoor paint will last longer than the older

paint. fifty blocks made from the same wood were randomly assigned to be painted with either the new paint or the old paint. the blocks were placed into a weather-controlled room that simulated extreme weather conditions such as ice, temperature, wind, and sleet. after one month in the room, the blocks were removed, and each block was rated on texture, shine, brightness of color, and chipping. the results showed that the blocks painted with the new paint generally had higher ratings than the blocks painted with the old paint. however, an analysis of the results found that the difference in ratings was not statistically significant. what can be concluded from the experiment?
World Languages
1 answer:
mr_godi [17]2 years ago
7 0

Answer:

A school psychologist wants to test the effectiveness of a new method for teaching reading. She recruits 500 first-grade students in District 203 and randomly divides them into two groups. Group 1 is taught by means of the new method, while group 2 is taught via traditional methods. The same teacher is assigned to teach both groups. At the end of the year, an achievement test is administered and the results of the two groups compared. (a) What is the response variable in this experiment? (b) Think of some of the factors in the study. Which are controlled? Which factor is manipulated? (c) What are the treatments? How many treatments are there? (d) How are the factors that are not controlled or manipulated dealt with? (e) What type of experimental design is this? (f) Identify the subjects. (g) Draw a diagram similar to Figure 6 or 7 to illustrate the design.

Explanation:

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marin [14]

Answer:

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3 years ago
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Which of the following is an argument presented against buying local fruits and vegetables? Local farmers may spotlight a produc
Olegator [25]

Answer:

2. Local farms cannot produce all of our favorite foods all year

3. Washing produce before eating

Explanation:

There are many advantages of eating locally grown fruits and vegetables. People usually agree that local produce, which travels shorter distances to the market, is fresher than the one that travels long distances. Local farmers' markets may spotlight produce that an area is famous for, for example, Michigan cherries, Michigan blueberries, or Washington apples. Though, unfortunately, we cannot get our favorite foods from local farms at all times of the year. Some fruits and vegetables, such as melons or peaches, simply cannot survive during the winter or do not grow in certain areas, like different exotic fruits.

To avoid getting sick from contaminated food, the first step is to wash it. This should be done no matter how good the food looks, as it can look and even smell completely normal, but be contaminated nonetheless. Not all food is cooked, so that is not a perfect solution, and safety is an issue no matter where the food comes from. Even locally produced foods can be contaminated. Washing foods with water before their consumption is usually a good solution.

8 0
3 years ago
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Janice has a lot of sources and evidence that she's using for her research paper. What advice would you give her so she doesn't
Sladkaya [172]
Write her resources on a piece of paper and number them. Whenever you write down a fact write down the corespondent number of where you got it from right next to it.
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4 years ago
What are two obstacles barrington irving had to overcome in order to achieve his dream?
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To follow his dream , Irving turned down a full football scholarship to the university of florida. he washed airplanes to earn money for flight schools and increased his flying skills by practicing at home in a $40 flight simulator video game .
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Which word means most nearly the same as advance?
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I believe the answer is the first choice, which is motion.
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