Question

Construct the confidence interval for the population variance for the given values. Round your answers to one decimal place. n=12, s2=12.8, and c=0.95

Answer #1

95% confidence interval for ^{2}
is

(n-1) S^{2} / /2 <
^{2} <
(n-1) S^{2} / 1-/2

(12 - 1) * 12.8 / 21.920) < ^{2} <
(12 - 1) * 12.8 / 3.816)

6.4234 < ^{2} <
36.8973

95% CI is **(6.4 . 36.9)**

Construct the confidence interval for the population variance
for the given values. Round your answers to one decimal place.
n=5, s2=21.2, and c=0.98

Construct the confidence interval for the population variance
for the given values. Round your answers to one decimal place.
n= 27 s^2 = 6.2 , and c = 0.98
What is the lower end point and higher end point ?

Construct the confidence interval for the population standard
deviation for the given values. Round your answers to one decimal
place.
n=3 , s=7.1 , and c=0.98

Determine the critical values for the confidence interval for
the population variance from the given values. Round your answers
to three decimal places. n=13 and c=0.95.

Determine the critical values for the confidence interval for
the population variance from the given values. Round your answers
to three decimal places.
n=9 and c=0.8.

Determine the critical values for the confidence interval for
the population variance from the given values. Round your answers
to three decimal places. n=13 and α=0.02 .

Determine the critical values for the confidence interval for
the population variance from the given values. Round your answers
to three decimal places. n=20 and α=0.02.

Determine the critical
values for the confidence interval for the population variance from
the given values. Round your answers to three decimal places.
n=14 and α=0.01.

Find a 90% confidence interval for a population mean μ for these
values. (Round your answers to three decimal places.)
(a)n = 130, x = 0.82, s2 = 0.085
______ to _______
(b)n = 40, x = 22.7, s2 = 3.19
_______ to _______

Find a 90% confidence interval for a population mean ?
for these values. (Round your answers to three decimal places.)
(a)
n = 145, x = 0.88, s2 =
0.084
to
(b)
n = 70, x = 25.6, s2 =
3.49
to
(c)
Interpret the intervals found in part (a) and part (b).
There is a 10% chance that an individual sample proportion will
fall within the interval.There is a 90% chance that an individual
sample proportion will fall within...

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