Question

Find the margin of error for the given values of c, s, and n.

cequals=0.8080,

sequals=66,

nequals=2626

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Click the icon to view the t-distribution table.

The margin of error is?

(Round to one decimal place as needed.)

Answer #1

**To find the margin of error for given, confidence (c) =
0.80 , sample size (n) = 26 and standard deviation (s) =
6**

We know that, margin of error is calculated as,

where t* is the value from t distribution with (n-1) degrees of freedom and level of significance,

Thus,

**Therefore, margin of error is 1.5489**

Find the margin of error for the given values of c, σ, and
n.
c=0.90, σ=3.3, n=81.
Eequals= _ (Round to three decimal places as needed.)

Find the margin of error for the given values of c, s, and
n.
c=0.80, s=2.3, n=10

Find the margin of error for the given values of c, s, and
n.
c=0.80,
s=3.4,
n=14

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.Nicotine in
menthol cigarettes
8080%
confidence;
nequals=2929,
sequals=0.250.25
mg.
LOADING...
Click the icon to view the table of Chi-Square critical
values.
df=
(Type a whole number.)

Consider the hypothesis statement to the right.
State your conclusion given that
s=6.6,
n=29,
and
α=0.05.
H0:
σ2=33.0
H1:
σ2≠33.0
LOADING...
Click the icon to view a table of chi-square critical
values.
Calculate the appropriate test statistic.
The test statistic is
nothing.
(Round to two decimal places as needed.)

Consider the hypothesis statement to the right.
State your conclusion given that
s=5.4,
n=27,
and
α=0.05.
H0:
σ2=13.0
H1:
σ2≠13.0
LOADING...
Click the icon to view a table of chi-square critical
values.
Calculate the appropriate test statistic.
The test statistic is
nothing.
(Round to two decimal places as needed.)

Find the minimum sample size n needed to estimate
muμ
for the given values of c,
sigmaσ,
and E.
cequals=0.980.98,
sigmaσequals=5.45.4,
and
Eequals=22
Assume that a preliminary sample has at least 30 members.
nequals=
(Round up to the nearest whole number.)

Determine the margin of error for an 80% confidence interval to
estimate the population mean with sigmaequals51 for the following
sample sizes. a) n equals 35 b) n equals 41 c) n equals 60 Click
the icon to view the cumulative probabilities for the standard
normal distribution
. a) When nequals35, the margin of error for an 80%
confidence interval is____. (Round to two decimal places as
needed.)
b) When nequals41, the margin of error for an 80% confidence
interval...

The population mean and standard deviation are given below. Find
the required probability and determine whether the given sample
mean would be considered unusual.
For a sample of
nequals=6464,
find the probability of a sample mean being less than
21.521.5
if
muμequals=2222
and
sigmaσequals=1.171.17.
LOADING...
Click the icon to view page 1 of the standard normal table.
LOADING...
Click the icon to view page 2 of the standard normal table.
For a sample of
nequals=6464,
the probability of a sample...

Find the Margin of Error for each problem:
1) c = .95; n =
30; s = 3.5 Margin of Error=
2) c = .85; n =
18; s = 0.49 Margin of Error=
3) c = .95; n =
12; s = 12.6 Margin of Error=
4) c = .99; n =
26; s = 18.9 Margin of Error=
Round answers to three decimal places.

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