The answer would be 1. Whenever there is no number in front of the x, it automatically becomes a one
Answer:
Option B is correct.
We are 95% confident that between 60.5% and 65.5% of Americans say their sleep needs are not being met during the week
Step-by-step explanation:
Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence using data from the sample.
Mathematically,
Confidence Interval = (Sample proportion) ± (Margin of error)
Sample proportion = 63%
Margin of Error is the width of the confidence interval about the mean.
Margin of error = 2.5%
Confidence level = 95%
Confidence Interval = (Sample proportion) ± (Margin of error)
95% Confidence Interval = (63%) ± (2.5%)
95% Confidence interval = (60.5%, 65.5%)
From the definition of confidence interval given above, we can interpret this confidence interval obtained for the population proportion of Americans that say that their sleep needs are not being met during the week as that;
We are 95% confident that between 60.5% and 65.5% of Americans say their sleep needs are not being met during the week
Hope this Helps!!!
Answer:
2,000 miles
Step-by-step explanation:
250 x 8 = 2,000
Answer:
If a box is supposed to contain 18 ounces, and the acceptable error is 1 ounce, then the acceptable range is:
18 oz - 1oz = 17oz to 18oz + 1oz = 19oz
Then the acceptable range is (17oz, 19oz)
if the weight is smaller than 17 oz, the box is not acceptable.
If the weight is bigger than 19 oz, the box is not acceptable.
Then the graph of the boxes that can not be sold as full boxes is:
<---16---------17-------18--------19-------20----------->
where 17oz and 19oz are not included, because are acceptable weigths.
For this case we have an equation of the form:
f (n) = A * (b) ^ n
Where,
A: initial amount
b: growth rate
n: number of years
Substituting values we have:
f (n) = 80 * (3) ^ n
Answer:
a function f (n) to model the number of snails in the tank n years after mark's visit is:
f (n) = 80 * (3) ^ n