Mathematics, 18.06.2020 00:57 kirstenb278
A researcher wanted to see if giving a selective serotonin reuptake inhibitor (anti-depressant) would decrease the number of self-injurious behaviors (SIB’s) found in adolescents. They gave the anti-depressant to a group of 8 participants and counted the numbers of SIBs a person performed for a month after taking the drug for 6 months. Here are the number of SIB’S performed by the 8 people, 27, 25, 32, 40, 43, 37, 35, 38.
a. Find the mean variance, and standard deviation of this group.
b. Suppose the u=45, what is the z score?
c. What is the SEM for this particular group?
Answers: 2
![s^2=\dfrac{1}{(n-1)}\sum_{i=1}^{8}(x_i-M)^2\\\\\\s^2=\dfrac{1}{7}\cdot [(27-(35))^2+(25-(35))^2+(32-(35))^2+(40-(35))^2+(43-(35))^2+(37-(35))^2+(35-(35))^2+(38-(35))^2]\\\\\\](/tpl/images/0688/3997/6ce38.png)
![s^2=\dfrac{1}{7}\cdot [(58.141)+(92.641)+(6.891)+(28.891)+(70.141)+(5.64)+(0.14)+(11.39)]\\\\\ s^2=\dfrac{273.875}{7}=39.125\\\\\\s=\sqrt{39.125}=6.255](/tpl/images/0688/3997/19142.png)
Another question on Mathematics
Mathematics, 21.06.2019 16:40
Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5
Answers: 1
Mathematics, 21.06.2019 19:30
What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)
Answers: 1
Mathematics, 22.06.2019 00:20
Convert the number to decimal form. 12) 312five a) 82 b) 30 c) 410 d) 1560 13) 156eight a) 880 b) 96 c) 164 d) 110 14) 6715eight a) 53,720 b) 3533 c) 117 d) 152
Answers: 1
Mathematics, 22.06.2019 02:00
Suppose you can spend at most $12. create an inequality that represents this restraint. then find at least three ordered pair solutions representing the number of boxes of candy and combos you can buy
Answers: 3
You know the right answer?
A researcher wanted to see if giving a selective serotonin reuptake inhibitor (anti-depressant) woul...
Questions
Spanish, 31.07.2020 19:01
Mathematics, 31.07.2020 19:01
Mathematics, 31.07.2020 19:01
Mathematics, 31.07.2020 19:01
Social Studies, 31.07.2020 19:01
World Languages, 31.07.2020 19:01
