Answer:
a) Statistic.
b) The population proportion is expected to be between 0.29 and 0.31 with a 94% degree of confidence.
Step-by-step explanation:
a) The proportion of 30% is a statistic, as it is a value that summarizes data only from the sample taken in the study from USA Today. Other samples may yield different proportions.
b) We can use the statistic to estimate a confidence interval for the parameter of the population.
The standard error for the proportion is calculated as:
The margin of error is 0.01. We can use this value to determine the level of confidence that represents.
The formula for the margin of error is:
This z-value, according to the the standard normal distribution, corresponds to a confidence interval of 94%.
The interval for this margin of error is:
Then, we can conclude that the population proportion is expected to be between 0.29 and 0.31 with a 94% degree of confidence.
We can use the formula: V = (1/3)a2h to solve this (a is not area, it’s for side length
We plug in our variables
V=(1/3)10^2x12
We get the answer 400m^3
Answer:
$3420
Step-by-step explanation:
multiply 95 by 36
The Answer to the problem is X=3 because sice it is equidistant you do 2x+24 = 30 and subtract 24 from 30 then you will get 2x=6 tben you divide 2 frkm both sides and you will have x=3
The trigonometric formula (or identity) should you use to help simplify and solve the equation is
<h2>Trigonometry identity</h2>
Given the trigonometry identity
According to trigonometry identity
Also since , the expression becomes;
To simplify the function given, you will substitute into the original equation to have:
Hence the trigonometric formula (or identity) should you use to help simplify and solve the equation is
Learn more on trig identity here: brainly.com/question/24496175