D 20 cubic feet would be your answer
Answer:
The 95% CI is (6.93% , 7.47%)
The 99% CI is (6.85% , 7.55%)
Step-by-step explanation:
We have to estimate two confidence intervals (95% and 99%) for the population mean 30-year fixed mortgage rate.
We know that the population standard deviation is 0.7%.
The sample mean is 7.2%. The sample size is n=26.
The z-score for a 95% CI is z=1.96 and for a 99% CI is z=2.58.
The margin of error for a 95% CI is
Then, the upper and lower bounds are:
Then, the 95% CI is
The margin of error for a 99% CI is
Then, the upper and lower bounds are:
Then, the 99% CI is
Answer:
4
Step-by-step explanation:
<em>4 is the rate because if she can make 4 in 10 min the the constant would be 4. By the way this didnt get answered becasue it was posted in spanish!</em>
<em />
Have a great day!
Brainliest is appreciated!
- Lea
Your answer is b !!!
Can you mark me BRAINLEST?