A90% confidence interval for the mean percentage of airline reservations being canceled on the day of the flight is (1.3%, 5.1%). what is the point estimate of the mean percentage of reservations that are canceled on the day of the flight?

The point estimate for the mean is 3.2% and the margin of error is 1.9% .

Step-by-step explanation:

The confidence interval for population mean is given by :-

, where E is the margin of error .

Given : A 90% confidence interval for the mean percentage of airline reservations being canceled on the day of the flight is (1.3%, 5.1%).

Lower limit of the confidence interval :                 (1)

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 3.2% and the margin of error is 1.9% .

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1