![subject](/tpl/images/cats/mat.png)
Mathematics, 09.04.2020 00:57 mathiscool51
A random sample of n=25 individuals is selected from a population with μ=20 , and a treatment is administered to each individual in the sample. After treatment, the sample mean is found to be M= 22.2 with SS= 384.
a. How much difference is there between the mean for the treated sample and the mean for the original population? (Note: In a hypothesis test, this value forms the numerator of the r statistic.)
b. If there is no treatment effect, how much difference is expected between the sample mean and its population mean? That is, find the standard error for M. (Note: In a hypothesis test, this value is the denominator of the t statistic.)
c. Based on the sample data, does the treatment have a significant effect? Use a two-tailed test with α= 0.05.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:50
Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
Through non-collinear points there is exactly one plane.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30
Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.
Answers: 2
![question](/tpl/images/cats/mat.png)
You know the right answer?
A random sample of n=25 individuals is selected from a population with μ=20 , and a treatment is adm...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 24.10.2020 14:20
![question](/tpl/images/cats/mir.png)
World Languages, 24.10.2020 14:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 24.10.2020 14:30
![question](/tpl/images/cats/en.png)
English, 24.10.2020 14:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 24.10.2020 14:30
![question](/tpl/images/cats/mat.png)
Mathematics, 24.10.2020 14:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.10.2020 14:30
![question](/tpl/images/cats/geografiya.png)
Geography, 24.10.2020 14:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 24.10.2020 14:30
![question](/tpl/images/cats/mat.png)
Mathematics, 24.10.2020 14:30
![question](/tpl/images/cats/mat.png)
Mathematics, 24.10.2020 14:30