o test Upper H 0H0: muμequals=2020 versus Upper H 1H1: muμless than<2020, a simple random sample...
o test
Upper H 0H0:
muμequals=2020
versus
Upper H 1H1:
muμless than<2020,
a simple random sample of size
nequals=1616
is obtained from a population that is known to be normally distributed. Answer parts (a)-(d).
LOADING...
Click here to view the t-Distribution Area in Right Tail.
(a) If
x overbarxequals=18.318.3
and
sequals=3.83.8,
compute the test statistic.
Homework Answers
To Test :-
H0 :- µ = 20
H1 :- µ < 20
Test Statistic :-
t = ( X̅ - µ ) / (S / √(n) )
t = ( 18.3 - 20 ) / ( 3.8 / √(16) )
t = -1.7895
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