Given
the
following
null
and
alternative
hypotheses,
complete
parts
a
and
b.
H,:
62
=100
0
Hp:
02
#100
a.
Testwhen
n=26,
s=9,
and
a=0.10.
Be
certain
to
state
the
decision
rule.
State
the
decision
rule.
Select
the
correct
choice
below
and,
if
necessary,
fill
in
any
answer
boxes
to
complete
your
choice.
(Round
to
four
decimal
places
as
needed.)
If
the
test
statistic,
x2
>
x(2).05
=
37.6525',
reject
Hy,
or
if
the
test
statistic,
x2
<
Xg.gs
=
14.61
14',
reject
Hy.
If
the
test
statistic,
x
>
xfi
=,
rejectH,.
If
the
test
statistic,
x2
<
x?
—a
=
s
rejectH,.
Find
the
test
statistic,
X2-
x2
=
20.25
(Type
an
integer
or
a
decimal.)
Choose
the
correct
conclusion
below.
Reject
Hy.
There
is
insufficient
evidence
that
o2
#100.
Do
not
reject
H,.
There
is
sufficient
evidence
that
6%
#
100,
-
Reject
Hy.
There
is
sufficient
evidence
that
o2
#
100.
¥
U
Do
not
reject
Ho-
There
is
insufficient
evidence
that
62
#
100.
b.
Test
when
n=23,
s=5,
and
aa=0.05.
Be
certain
to
state
the
decision
rule.
State
the
decision
rule.
Select
the
correct
choice
below
and,
if
necessary,
fill
in
any
answer
boxes
to
complete
your
choice.
(Round
to
four
decimal
places
as
needed.)
If
the
test
statistic,
x2
>
xi
=,
rejectH,.
_
2
_
.
If
the
test
statistic,
x2
<X1-o=
rejectH.
Y
If
the
test
statistic,
x2
>
xfi
/o
=
36.7807
,
reject
Hy
or
if
the
test
statistic,
x2
<
xf
—a/2
=
10.9823,
reject
Hy.
Find
the
test
statistic,
x2
xz
=
5.5
(Type
an
integer
or
a
decimal.)
Choose
the
correct
conclusion
below.
Do
not
reject
Hy.
There
is
insufficient
evidence
that
o2
#100.
Reject
H,.
There
is
insufficient
evidence
that
62
#
100.
-
Do
not
reject
Hy.
There
is
sufficient
evidence
that
o2
#100.
¥'D.
Reject
Hy.
There
is
sufficient
evidence
that
62
#
100.
