Answer: 12 it’s not that hard it’s subtraction 18 - 30 = 12
Answer:
The requirements for the hypothesis test does satisfied the method for testing the claim that from two population proportions the rate of polio is less for children given the salk vaccine.
Step-by-step explanation:
The percentage of children in the treatment group was:
(201229/401974)*100 = 49.9%
The percentage of children given placebo was:
(200745/401974)*100 = 50.1%
The percentage of children that developed polio in the treatment group:
(33/200745)*100 = 0.0164%
The percentage of children that developed polio in the placebo group:
(115/201229)*100 = 0.0571%
The percentage difference between the two group:
((0.0571-0.0164)/0.0571) = 61.62%
Therefore:
The amount of children used for each group was almost divided into half of the total amount of children. The test revealed although very small percentages of the both group developed polio, 68.62% more children given placebo than the children that was given the salk vaccine. Therefore, the study shows that the rate of polio is less for children given the salk vaccine and the the hypthesis test is satisfied.
Answer: part time workers 5×18 =90, full time 7×18
Step-by-step explanation: count how many parts there are: 5+7 = 12
Then divide 216 by 12. One part of employee is 18
Answer: 2 1/5 partes de torta
Step-by-step explanation:
Para contestar esta pregunta debemos sumar cada parte de torta:
0.7+9/12+6/8 =
Convertimos las fracciones en decimales, para tener todos los valores expresados de la misma forma. Dividiendo:
9/12=0.75
6/8=0.75
Sumamos
:
0.7+0.75+0.75 = 2.2 partes = 2 1/5 partes
En conclusión, Carolina y sus amigos comieron 2 1/5 partes de torta.
