Question

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.)

Answer #1

**We know that :-**

Margin of error = Critical value Standard error of the sample

Standard error of the sample = = = 0.3667

Critical value = Z_{/2}

According to the problem : 1- = 0.90 =0.1 /2 = 0.05

Critical
value = Z_{/2} =
Z_{0.05} = 1.645

**Thus;**

**Margin of error = 1.645 0.3667 =
0.6031667**

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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The margin of error is?
(Round to one decimal place as needed.)

Find the value of E, the margin of error, for c = 0.90, n = 16
and s = 2.2.

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

Find the margin of error for the given confidence level and
values of x and n. x = 80, n = 146, confidence level 99%

Find the margin of error for the given confidence level and
values of x and n. x=79, n=187, 98% confidence level

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.

Assume that a random sample is used to estimate a population
proportion p. Find the margin of error E that corresponds to the
given statistics and confidence level. n equals 600 comma x equals
240 comma 90 % confidence The margin of error Eequals nothing.
(Round to four decimal places as needed.)

Assume that a random sample is used to estimate a population
proportion p. Find the margin of error E that corresponds to the
given statistics and confidence level. n equals 500 comma x equals
350 comma 95 % confidence The margin of error Eequals nothing.
(Round to four 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.)

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