Question

Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals

100 with a sample size of (i)484 and (ii)1521.

What is the effect of the sample size?

Answer #1

Find the margin of error for a 95% confidence interval for
estimating the population mean when the sample standard deviation
equals 90 with a sample size of (i) 484 and (ii) 1600
(i) Find the margin of error for a 95% confidence interval for
estimating the population mean when the sample standard deviation
equals 90 with a sample size of 484
(ii).
(ii) Find the margin of error for a 95% confidence interval
for estimating the population mean when the...

Determine the margin of error for
a
95%
confidence interval to estimate the population mean when s
=
37
for the sample sizes below.
a)
nequals=15
b)
nequals=34
c)
nequals=46
a) The margin of error for
a
95%
confidence interval when
nequals=15
is
nothing.
(Round to two decimal places as needed.)
b) The margin of error for
a
95%
confidence interval when
nequals=34
is
nothing.
(Round to two decimal places as needed.)
c) The margin of error for
a
95%...

Assume that you want to construct a 95% confidence interval
estimate of a population mean. Find an estimate of the sample size
needed to obtain the specified margin of error for the 95%
confidence interval. The sample standard deviation is given
below.
Margin of errors=$6,
standard deviation=$22
The required sample size is __

3. Examine the following equation for the margin of error when
estimating the Population Mean.
( does it increase or decrease?)
Indicate the effects of Margin of error resulting from:
a. Standard error
b. Sample size
c. Confidence level
d. Standard deviation

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...

1.
a) Calculate the 95% margin of error in estimating a population
mean μ for the following values. (Round your answer to
three decimal places.)
n = 8,000, s2 =
64
b) Consider that for s2 = 64 and
sample sizes of 50, 100, and 500 the margins of error are 2.217,
1.568, and 0.701 respectively. Comment on how an increased sample
size affects the margin of error.
-As the sample size increases the margin of error also
increases.
-As...

The margin of error for a confidence interval depends on the
confidence level, the standard deviation, and the sample size. Fix
the confidence level at 95% and the sample standard deviation at 1
to examine the effect of the sample size. Find the margin of error
for sample sizes of 5 to 100 by 5's -- that is, let n = 5, 10, 15,
..., 100. (Round your answers to three decimal places.)
5
10
15
20
25
30
35...

If you want to be 95% confident when estimating the population
mean to within a sampling error of ± 20 and the standard deviation
is assumed to be 100, what sample size is required?

Find the margin of error for the 95% confidence interval
used to estimate the population proportion.
In a sample of 178 observations, there were 100 positive
outcomes.
Group of answer choices
0.0656
0.128
0.00271
0.0729

Use
the confidence level and sample data to find a confidence interval
for estimating the population mean. A local telephone company
randomly selected a sample of 679 duration of calls. The a sample
mean amount was 6.81 min with a population standard deviation of
5.1 min. Construct a confidence interval to estimate the population
mean of pulse rate if a confidence level is 99% .
Initial Data:
E(margin of error result value) =
CI(population mean confidence interval result value)=

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