Question

Assume that population proportion is to be estimated from the sample described. Use the sample results to approximate the margin of error and 95% confidence interval.

n=560, p-0.65 Round to four decimal places as needed.

Answer #1

Solution :

Given that,

Point estimate = sample proportion = = 0.65

1 - = 1 - 0.65 = 0.35

n = 560

At 95% confidence level the z is ,

= 1 - 95% = 1 - 0.95 = 0.05

/ 2 = 0.05 / 2 = 0.025

Z_{/2}
= Z _{0.025} = 1.96

Margin of error = E = Z_{ / 2} * (( * (1 - )) / n)

= 1.96 * (((0.65 * 0.35) / 560)

Margin of error = E = **0.0395**

Assume that population mean is to be estimated from the sample
described. Use the sample results to approximate the margin of
error and 95% confidence interval. Sample size, n=64; sample
mean, x overbare=83.0 cm; sample standard deviation, s=4.0
cm.
The margin of error is ____ cm. (Round to one decimal place as
needed.)

Assume that population mean is to be estimated from the sample
described. Use the sample results to approximate the margin of
error and 95% confidence interval.
n=49, x=56.1 seconds, s=5.1 seconds

Assume that population means are to be estimated from the
samples described. Use the sample results to approximate the margin
of error and 95% confidence interval. Sample size- 1,042 Sample
mean - 46,245 Standard Deviation- 26,000
1-The margin of error is
2-Find the 95% confidence interval.

Assume that population means are to be estimated from the
samples described. Use the sample results to approximate the margin
of error and 95% confidence interval.
Sample size=1,048,
sample mean=$46,209,
sample standard deviation=$21,000
The margin of error is $ __

A population proportion is to be
estimated from a sample of 64 with a sample proportion of 0.9.
Approximate the 95% confidence interval of the population
proportion. Round to four decimal places, if necessary.
A. 0.8470<p<0.9530
B. 0.7750<p<1.0250
C. 0.8250<p<0.9750
D. 0.8906<p<0.9094

Assume that population mean is to be estimated from the sample
size n =100, Sample mean x = 76.0cm, standard deviation s = 4.0cm.
Use the results to approximate the margin of error and 95%
confidence interval.

A) Assume that a sample is used to estimate a population
proportion p. Find the margin of error E that corresponds to the
given statistics and confidence level. Round the margin of error to
four decimal places.
90% confidence; n = 341, x = 173
B) Assume that a sample is used to estimate a population
proportion p. Find the margin of error E that corresponds to the
given statistics and confidence level. Round the margin of error to
four...

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.)

Assume that a sample is used to estimate a population
proportion p. Find the margin of error E that corresponds to the
given statistics and confidence level. Round the margin of error to
four decimal places.
95% confidence; n = 356, x = 49

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. nbsp 95 % confidence; the
sample size is 1453 comma of which 40 % are successes The margin of
error Eequals nothing. (Round to four decimal places as
needed.)

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 4 minutes ago

asked 39 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago