nt / (n+t)
substitute n=15 and t=7
(15*7)/(15+7)
105/22
22 goes into 105 4 times with 17 left over
4 17 /22
Answer:
We want to verify if the true proportion of the alumni provide monetary contributions is higher than 0.15 (Alternative hypothesis), the system of hypothesis are.:
Null hypothesis:
Alternative hypothesis:
And the best answer for this case would be:
Ha: p > 0.15
Step-by-step explanation:
Information given
n=250 represent the random sample taken
X=40 represent the number of people on the alumni mailing list
estimated proportion of people on the alumni mailing list
is the value to verify
z would represent the statistic
represent the p value
Hypothesis to test
We want to verify if the true proportion of the alumni provide monetary contributions is higher than 0.15 (Alternative hypothesis), the system of hypothesis are.:
Null hypothesis:
Alternative hypothesis:
And the best answer for this case would be:
Ha: p > 0.15
Answer:
-1 < = x < 6 [-1 , 6 )
Step-by-step explanation:
hope you got it.
Answer:
-112
Step-by-step explanation:
8>6 so use the bottom equation
7-2x
x=8 so insert it into the equation
7(-2 multiplied by 8)
7(-16)
-112
3,6 are the only multiples so it would be 2/6 but simplify that to 1/3
2,4,6 are evens so it would be 3/6 which is also 1/2