Question

Find the critical values χ2L and χ2R for the given confidence level c and sample size n. c=0.9 n=26

χ2L =

χ2R=

-Find the critical values χ2L and χ2R for the given confidence level c and sample size n. c=0.8 n=25

χ2L:

χ2R:

Answer #1

Solution:

Question 1

Find the critical values χ2L and χ2R for the given confidence level c and sample size n.

We are given

c=0.9

n=26

So, critical values by using chi square table or excel are given as below:

χ2L = 14.6114

χ2R = 37.6525

Question 2

Find the critical values χ2L and χ2R for the given confidence level c and sample size n.

We are given

c=0.8

n=25

So, critical values by using chi square table or excel are given as below:

χ2L = 15.6587

χ2R = 33.1962

Find the critical values χ²L and χ²R for the given confidence
level c and sample size n.
c=.98
n=27

Find the values of χ2L and χ2R for a sample of 27 scores and a
confidence level of 95%.
χ2L =
χ2R =

Use the given information to find the number of degrees of
freedom, the critical values chi Subscript Upper L Superscript 2
χ2L and chi Subscript Upper R Superscript 2 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 95 95 %
confidence; n equals = 25 25 , s equals = 0.28 0.28 mg.

Find the critical value t a/2 needed to construct a confidence
interval of the given level with th sample size. Round the amswers
to theee decimal places.
For level 95% and sample size 11?
For level 98% and sample size 26?
For level 99% and sampke size 12?

(1) Find the critical value tc for the confidence level c equals
=0. 98 and sample size n equals = 15
(2) Find the critical value tc for the confidence level c=0.98
and sample size n=7
(3) Construct the indicated confidence interval for the
population mean mu using the t-distribution. Assume the population
is normally distributed.
c=0.990. overbar x=12.9 s=4.0 n=55
(4) Construct the indicated confidence interval for the
population mean μ using the t-distribution. Assume the population
is normally...

Find the critical value or values for the following values of
the significance level α, sample size n, and alternate hypothesis
H1. The critical value is α = 0.05, n = 7, H1: μ < μ0

1) Find the critical value t (a/2) needed to construct a
confidence interval of the given level with the given sample size.
Round the answers to three decimal places
a) 98% sample size 11
critical value-
b) for level 95% and sample size 25
critical value-
c)for level 99% and sample size 14
2) a sample of size n equals 45 has a sample mean X equals 56.9
and sample standard deviation s equals 9.4.
construct a 99% confidence interval...

Find the critical t-value corresponding to a sample size of 29
and a confidence level of 90%.

Given the linear correlation coefficient r and the sample size
n, determine the critical values of r and use your finding to
state whether or not the given r represents a significant linear
correlation. Use a significance level of 0.05. r=0.543, n=25.
please help

Find the critical value
t/α2
needed to construct a confidence interval of the given level
with the given sample size. Round the answers to three decimal
places.
(a) For level
99.5%
and sample size
6
(b) For level
95%
and sample size
15
(c) For level
80%
and sample size
29
(d) For level
98%
and sample size
12

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