Assume that a sample is used to estimate a population mean μ
. Find the margin of error M. E. that corresponds to a sample of size 17 with a mean of 54.8 and a standard deviation of 18.6 at a confidence level of 99%.

Report ME accurate to one decimal place because the sample statistics are presented with this accuracy.

M. E. =

M.E = 18.39

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Hello Dear Friend

6hryt%4578855

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.