Justin and hayley conducted a mission to a new planet, planet x, to study arm length. they took a random sample of 100 planet x residents. then they calculated a 95% confidence interval for the mean arm length. what does a 95% confidence interval for arm length tell us in this case? (i) i am 95% confident that this interval includes the sample mean (μ) arm length. (ii) i am confident that 95% of all planet x residents will have an arm length within this interval. (iii) i am confident that 95% planet x residents will have arm lengths within this interval. (iv) i am 95% confident that this interval includes the population mean arm length.

answer is 67%

step-by-step explanation:

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

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|