Answer:
.
Step-by-step explanation:
The given infinite series is .
The first term of this series is .
The common ratio is .
.
The sum of this infinite series is given by the formula,
We now substitute all the above values in to this formula obtain,
This implies that,
This simplifies to,
.
The correct answer is C.
6. What is the domain of this function?
(0, 2), (1, 3), (2, 4), (3,5), (4,6)
the domain is the set of all the values x of while the range is the set of all the value of y
Let p be the population proportion of parents who had children in grades K-12 were satisfied with the quality of education the students receive.
Set of hypothesis :
Confidence interval for population proportion is given by :-
, where
n= sample size
= sample proportion
and is the two-tailed z-value for confidence level (c).
As per given ,
Sample size of parents : n= 1085
Number of parents indicated that they were satisfied= 466
Sample proportion :
Critical value for 90% confidence interval : ( by z-value table)
Now, the 90% confidence interval :
Thus , the 90% confidence interval: (0.4043, 0.4537).
Since 0.43 lies in 90% confidence interval , it means we do not have enough evidence to reject the null hypothesis .
i.e. We are have no evidence that parents' attitudes toward the quality of education have changed.