True pr False
a) When performing a hypothesis for a population mean it is not necessary to obtain a simple random sample.
b) The area under a normal distribution curve is 1 but the area under a uniform
distribution curve is 2
c) The formula Z=(x- mean)/sigma doesn’t work for a standard normal distribution.
d) The presence of outliers has very little (if any) effect on a regression equation

i think the answer is .36

step-by-step explanation:

what i did was only 2.88 divided by 8

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.

for the free

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