![subject](/tpl/images/cats/mat.png)
Mathematics, 25.06.2019 00:10 willveloz4
To test the effectiveness of a new growth hormone, a researcher selects a sample of n = 20 newborn rats. ten of the rats receive regular injections of the hormone and the other 10 serve as a no-treatment control group. except for the hormone injections, the two groups receivve exactly the same treatment. after 6 months, the researcher weighs each rat and computes the average weight for each group. if the average weight for the hormone group is greater than the average for the control group, can the researcher automatically conclude that the hormone has an effect? (hint: what other factor might explain why the two groups have different averages? )
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:30
Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:50
Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:30
Walking at a constant rate of 8 kilometers per hour, juan can cross a bridge in 6 minutes. what is the length of the bridge in meters?
Answers: 1
You know the right answer?
To test the effectiveness of a new growth hormone, a researcher selects a sample of n = 20 newborn r...
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 01.07.2019 06:30
![question](/tpl/images/cats/biologiya.png)
Biology, 01.07.2019 06:30
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.07.2019 06:30
![question](/tpl/images/cats/mat.png)
Mathematics, 01.07.2019 06:30
![question](/tpl/images/cats/biologiya.png)
Biology, 01.07.2019 06:30
![question](/tpl/images/cats/istoriya.png)
History, 01.07.2019 06:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.07.2019 06:30
![question](/tpl/images/cats/biologiya.png)
Biology, 01.07.2019 06:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.07.2019 06:30
![question](/tpl/images/cats/istoriya.png)
History, 01.07.2019 06:30
![question](/tpl/images/cats/mat.png)
Mathematics, 01.07.2019 06:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 01.07.2019 06:30
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.07.2019 06:30