Given that the mean = 10.25 and the standard deviation = 2.87, find the confidence intervals for the confidence levels
a) 73% confidence interval
b) 85% confidence interval
c) 98.2% confidence interval
d) 89.8% confidence interval

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)

median- 36f

mode - none

mean- 33.7 ~ 34f