Answer: c. We are 95 percent confident that the proportion of people in the sample who think climate change is a problem is between 0.146 and 0.214.
Step-by-step explanation:
Interpretation for 95% confidence interval :
A person can be 95% confident that the true population parameter lies in it.
By considering the given information , we have
population parameter→ p (Proportion of people who think climate change )
95 percent confidence interval = (0.146, 0.214)
Interpretation : We can be 95% confident that the true population proportion of people who think climate change lies between 0.146 and 0.214.
So , the correct answer is
c. We are 95 percent confident that the proportion of people in the sample who think climate change is a problem is between 0.146 and 0.214.
Answer:
x = 10.3 in
Step-by-step explanation:
To find the value of a, use the area formula for a triangle. The formula is A = 1/2 *b*h. Here b = x and h= x. The formula becomes A = 1/2 *x². Substitute A = 53 and solve for x by using inverse operations.
A = 1/2x²
53 = 1/2x²
106 = x²
√106 = x
10.3 = x
Answer:
3 in
Step-by-step explanation:
Answer:
70%
Step-by-step explanation:
