Question
In: Statistics and Probability
Use the given information to find the number of degrees of freedom, the critical values X^2L...
Use the given information to find the number of degrees of freedom, the critical values X^2L and X^2R, and the confidence interval estimate of σ. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Platelet Counts of Women 99% confidence; n=28, s=65.2. What is the degrees of freedom? What is the X^2R and X^2L? What is the standard deviation?
Solutions
Expert Solution
Solution :
Given that,
n = 28
df = 27
2R
=
2
/2,df
= 49.645
2L
=
21 -
/2,df = 11.808
The 99% confidence interval for 
is,
(n
- 1)s2 /
2/2
<
<
(n - 1)s2 /
21 -
/2
27
* 65.22 / 49.645 <
<
27 * 65.22 / 11.808
48.5993 <
< 99.6522
(48.5993 , 99.6522)
orchestra answered 3 years agoRelated Solutions
Use the given information to find the number of degrees of freedom, the critical values chi...
Use the given information to find the number of degrees of
freedom, the critical values chi Subscript Upper L Superscript 2
and chi Subscript Upper R Superscript 2, and the confidence
interval estimate of sigma. It is reasonable to assume that a
simple random sample has been selected from a population with a
normal distribution. Nicotine in menthol cigarettes 90%
confidence; nequals23, sequals0.24 mg.
Use the given information to find the number of degrees of freedom, the critical values 2χ2L...
Use the given information to find the number of degrees of
freedom, the critical values 2χ2L and χ2R, and the confidence
interval estimate of sigma σ. It is reasonable to assume that a
simple random sample has been selected from a population with a
normal distribution. Platelet Counts of Women 98 % confidence; n=23
s=65.5.
df=22
(Type a whole number.)
2χ2L=9.542
(Round to three decimal places as needed.)
2χ2R=40.289
(Round to three decimal places as needed.)
The confidence interval estimate...
Use the given information to find the number of degrees of freedom, the critical values 2χ2L...
Use the given information to find the number of degrees of
freedom, the critical values 2χ2L and χ2R, and the confidence
interval estimate of sigma σ. It is reasonable to assume that a
simple random sample has been selected from a population with a
normal distribution.
Nicotine in menthol cigarettes 98% confidence; n= 27, s=0.27
mg.
df=
2χ2L=___
(Round to three decimal places as needed.)
2χ2=____
(Round to three decimal places as needed.)
The confidence interval estimate of σ is...
Use the given information to find the number of degrees of freedom, the critical values 2χ2L...
Use the given information to find the number of degrees of
freedom, the critical values 2χ2L and 2χ2R, and the confidence
interval estimate of sigmaσ. It is reasonable to assume that a
simple random sample has been selected from a population with a
normal distribution. Nicotine in menthol cigarettes 90%
confidence; n=30, s=0.23 mg.
Use the given information to find the number of degrees of freedom, the critical values chi...
Use the given information to find the number of degrees of
freedom, the critical values chi Subscript Upper L Superscript 2
and chi Subscript Upper R Superscript 2, and the confidence
interval estimate of sigma. It is reasonable to assume that a
simple random sample has been selected from a population with a
normal distribution. Platelet Counts of Women 90% confidence;
nequals24, sequals65.4.
Use the given information to find the number of degrees of freedom, the critical values chi...
Use the given information to find the number of degrees of
freedom, the critical values chi Subscript Upper L Superscript 2
and chi Subscript Upper R Superscript 2, and the confidence
interval estimate of sigma. It is reasonable to assume that a
simple random sample has been selected from a population with a
normal distribution. Platelet Counts of Women 90% confidence;
n=22, s=65.8.
Use the given information to find the number of degrees of freedom, the critical values chi...
Use the given information to find the number of degrees of
freedom, the critical values
chi Subscript Upper L Superscript 2χ2L
and
chi Subscript Upper R Superscript 2χ2R,
and the confidence interval estimate of
sigmaσ.
It is reasonable to assume that a simple random sample has been
selected from a population with a normal distribution.
Platelet Counts of Women
9898%
confidence;
nequals=2424,
sequals=65.165.1.
LOADING...
Click the icon to view the table of Chi-Square critical
values.
Use the given information to find the number of degrees of freedom, the critical values chi...
Use the given information to find the number of degrees of
freedom, the critical values chi Subscript Upper L Superscript 2
and chi Subscript Upper R Superscript 2, and the confidence
interval estimate of sigma. It is reasonable to assume that a
simple random sample has been selected from a population with a
normal distribution. Platelet Counts of Women 99% confidence;
nequals26, sequals65.1.
Use the given information to find the number of degrees of freedom, the critical values 2χ2L...
Use the given information to find the number of degrees of
freedom, the critical values 2χ2L and 2χ2R, and the confidence
interval estimate of sigmaσ. It is reasonable to assume that a
simple random sample has been selected from a population with a
normal distribution.
Nicotine in menthol cigarettes 90% confidence; n=2525,
s=0.270.27mg.
Use the given information to find the number of degrees of freedom, the critical values chi...
Use the given information to find the number of degrees of
freedom, the critical values chi Subscript Upper L Superscript 2
and chi Subscript Upper R Superscript 2, and the confidence
interval estimate of sigma. It is reasonable to assume that a
simple random sample has been selected from a population with a
normal distribution. Platelet Counts of Women 90% confidence;
n=23, s=65.2.
Can you please simplify the solution so i can do the rest on my
own.
Thank you!
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