Use the given information to find the number of degrees of freedom, the critical values xf and x, and the confidence interval estimate of o. 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 = 23, s= 0.27 mg. Click the icon to view the table of Chi-Square critical values. = jp (Type a whole number.) xỉ = (Round to three decimal places as needed.) %3D XB = (Round to three decimal places as needed.) %3D The confidence interval estimate of o ismg

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Please show solving steps to get these answers and if possible what excel functions can be used to get these answers. 

Use the given information to find the number of degrees of freedom, the critical values xf and x, and the confidence interval estimate of o. 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 = 23, s= 0.27 mg.
Click the icon to view the table of Chi-Square critical values.
= jp
(Type a whole number.)
xỉ = (Round to three decimal places as needed.)
%3D
XB = (Round to three decimal places as needed.)
%3D
The confidence interval estimate of o ismg<a< mg.
(Round to two decimal places as needed.)
ry Statistics Using Excel, 6e
DEC
13
Q Search
$
4.
R
Transcribed Image Text:Use the given information to find the number of degrees of freedom, the critical values xf and x, and the confidence interval estimate of o. 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 = 23, s= 0.27 mg. Click the icon to view the table of Chi-Square critical values. = jp (Type a whole number.) xỉ = (Round to three decimal places as needed.) %3D XB = (Round to three decimal places as needed.) %3D The confidence interval estimate of o ismg<a< mg. (Round to two decimal places as needed.) ry Statistics Using Excel, 6e DEC 13 Q Search $ 4. R
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