Answer:
......No
.......Yes
.....No
......Yes
Step-by-step explanation:
Let the number of students in Byran's homeroom who have tickets to attend the school's musical be m.
Then 4 more than half this number is written as: 
According to thee given statement, this expression is equal to 20.
We can subtract 
from both sides to create an equivalent expression.
<span>C = 2πr.
C= 2*3.14*20
125.6</span>
Answer:
what do you need help with?
Step-by-step explanation:
Answer:
Step-by-step explanation:
The average weight of a package of rolled oats is supposed to be at least 18 ounces
Null hypothesis: u >= 18
Alternative: u < 18
Using the t-test formula, we have
t = x-u/ (sd/√n)
Where x is 17.78, u = 18, sd = 0.41 and n = 18
t = 17.78-18 / (0.41/√18)
t = -0.22 / (0.41/4.2426)
t = -0.22/ 0.0966
t = -2.277
Since, this is a left tailed test, at a significance level of 0.05, the p value is 0.01139. Since the p value is less than 0.05, we will reject the null hypothesis and conclusion that the true mean smaller than the actual specification.
