Answer: The point estimate for the mean is <u>2.59</u> and the margin of error is <u>0.13</u> .
Step-by-step explanation:
The confidence interval for population mean is given by :-
, where E is the margin of error .
Given : At the end of one year, the store used the weekly sales information to construct a 95% confidence interval for the mean number of emeralds sold per week.
The confidence interval they calculated was (2.46,2.72) .
The lower limit of the confidence interval : 
(1)
The upper limit of the interval : 
(2)
Adding (1) and (2) , we get
Now, Subtracting (1) from (2) , we get
Hence, the point estimate for the mean is 2.59 and the margin of error is 0.13 .
Answer:
y = -6x - 57
Step-by-step explanation:
We are given that a line passes through the point (-9, -3) and has a slope of -6
We want to write the equation of this line.
There are 3 ways to write the equation of the line, with the most common way being slope-intercept form
Slope-intercept form is given as y=mx+b, where m is the slope and b is the y-intercept
As we are already given the slope of the line, we can immediately plug that in the equation for m
Substitute m with -6.
y = -6x + b
Now we need to find b
As the equation passes through the point (-9, -3), we can use its values to help solve for b.
Substitute -9 as x and -3 as y.
-3 = -6(-9) + b
Multiply
-3 = 54 + b
Subtract 54 from both sides
-57 = b
Substitute -57 as b in the equation.
y = -6x - 57
Topic: finding the equation of the line
See more on this topic here: brainly.com/question/27645158
It would be 15-5=10 that is because you subtract q3-q1
Is this question correct? is it thousand or thousandth? and does the comma signify a decimal point?
Answer:
One dot mark above one hundred and thirty-six. A) 92, 88, 100, 136, 106, 79, 88, 86, 98, 115. B) 92, 88, 100 ...
Step-by-step explanation:
