file:///C:/Users/V%20T%20PATEL/Downloads/test3_sample%20(1).pdf this is website
ID: 3363873 • Letter: F
Question
file:///C:/Users/V%20T%20PATEL/Downloads/test3_sample%20(1).pdf
this is website do the ture and false question
Part
I.
True or False (
4
points each, 40 points in total)
1.
The statistic
x
is a point estimate of the parameter
.
2.
Estimating a population parameter by a single number is called
interval estimation
.
3.
When the population mean
is estimated with a small sample (
n
< 30), the Central Limit
Theorem does not apply
.
4.
A sample is large if the interval
[
p
,
p
+
]
lies wholly within the interval [0, 1]
.
5.
The maximum sample size
n
needed to estimate a population mean
to within
E
units at 100(1
)% confidence level is
22
/2
2
()
z
n
E
(rounded up)
.
6.
A hypothesis about the value of a population parameter is an assertion about its value
.
7.
An
alternative hypothesis is the statement about the population parameter that is assumed to be
true unless there is convincing evidence to the contrary
.
8.
The observed significance of a test of hypotheses is the area of the tail of the distribution cut
of
f by the test statistic
.
9.
In systematic hypothesis testing procedure using
p
-
value approach,
H
0
is rejected if
p
-
value >
significance level
.
10.
To perform a small sample hypothesis test concerning a single population mean, when
is
unknown, the population must be Student’s
t
-
distributed
.
.
Explanation / Answer
1.
The statistic x is a point estimate of the parameter .
ANswer : true
2.
Estimating a population parameter by a single number is called interval estimation.
No it is point estimate.
Answer : false
3.
When the population mean is estimated with a small sample (n < 30), the Central Limit Theorem does not apply.
Answer : true
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.