D is the correct answer i think
The interval of true average price of a regular room with a king size bed in the resort community with 99% confidence is ( 14.74, 48.89 ).
<h3>What is the confidence interval of an average?</h3>
One method of determining the actual population mean is by using a confidence interval for the mean. A confidence interval provides a lower estimate and an upper estimate rather than just the mean.
A confidence interval expresses the degree of uncertainty surrounding a given statistic. A margin of error is frequently used with confidence intervals. It reveals the degree to which you may be certain that the findings of a poll or survey correspond to what you would anticipate discovering if it were possible to poll the complete population. Levels of confidence are inextricably linked to confidence intervals.
x = mean;
99% confidence interval for μ is
(x - t * S) /√n < μ <( x + t * S) /√n;
(135 - 2.898 * 25 )/√18 < μ < (135 + 2.898 * 25)/√18;
14.74< μ< 48.89;
99% CI is ( 14.74, 48.89 ) ;
critical value at 0.01 significance level with 17 df = 2.898
To learn more about confidence interval refer :
brainly.com/question/14825274
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Answer:
Step-by-step explanation:
step 1
Find the radius of the circle
we know that
The radius of the circle is the distance between the center and any point on the circle
the formula to calculate the distance between two points is equal to
we have the points
(0,0) and (0,-9)
substitute in the formula
step 2
Find the equation of the circle
The equation of the circle in center radius form is equal to
we have
substitute
Answer:
Do you still need help with this?
If your asking what is it its
When rounding to a place to the right of the decimal point, drop all the numerals to the right of the rounding place instead of changing them to zeros. Thus, 567.235 rounded to the nearest ten is 570, and 567.235 rounded to the nearest tenth is 567.2
If I'm wrong I'm sorry