Amphetamine is a drug that suppresses appetite. In a study of this effect, a pharmacologist randomly allocated 24 rats to three treatment groups to receive an injection of amphetamine at one of two dosage levels (2.5 mg/kg and 5 mg/kg), or an injection of saline solution. She measured the amount of food consumed by each animal in the 3-hour period following the injection. The results (gm of food consumed per kg body weight) are available in amphetamine. dat. Treatment Consumed
1 0.0 112.6
2 0.0 102.1
3 0.0 90.2
4 0.0 81.5
5 0.0 105.6
6 0.0 93.0
7 0.0 106.6
8 0.0 108.3
9 2.5 73.3
10 2.5 84.8
11 0.0 67.3
12 2.5 129
13 2.5 80.7
14 2.5 90.0
15 2.5 75.5
A) Is there evidence that the amount of food consumed by animals is different among the three groups?
B) Test the claim that food consumption is smaller in the group receiving 5.0 mg/kg amphetamine than the group receiving the saline solution.
C) Sketch a plot of the estimated mean food consumption for each group versus amphetamine dosage levels. Describe in a few words the relationship (if any) you observe in this plot.
D) Use a linear trend contrast to test the null hypothesis of no linear trend in food consumption. Report the test statistic and p-value and a conclusion within the context of the data.

1     sepan

2     encuentren

3     tenga

4     hable

5   parezca

6   llegue

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation: