Question
In: Statistics and Probability
Use the indicated margin of error, the confidence level, and the population standard deviation to calculate...
Use the indicated margin of error, the confidence level, and the population standard deviation to calculate the minimum sample size required to estimate an unknown population mean.
a) Error margin: 0.5 inch, confidence level: 95%, Standard deviation: 2.5 inch.
b) margin of error: 0.25 seconds, confidence level: 99%, standard deviation: 5.4 seconds.
c) Margin of error: $ 1, confidence level: 99%, standard deviation: $ 12.
d) Margin of error: 1.5 mm, confidence level: 95%, standard deviation: 8.7 mm
Solutions
orchestra answered 2 years agoRelated Solutions
What is the margin of error for the population mean at 90% confidence level for the...
What is the margin of error for the population mean at 90%
confidence level for the information in Data.
Data:
5.1
10.8
6.2
4.3
5.7
7.3
4.7
7.5
8.7
5.5
8.7
7.7
6.5
6.2
11.4
8.1
5.5
12.3
6.4
7.2
7.6
9.2
8.9
6.9
4.8
9.4
11.7
5.6
7.1
13.4
a) 0.74
b) 0.73
c) 0.72
d) 0.75
e) none of the above
Calculate the margin of error and construct the confidence interval for the population mean using the...
Calculate the margin of error and construct the confidence
interval for the population mean using the Student's t-distribution
(you may assume the population data is normally distributed).
T-Distribution Table
a. x̄ =87.3, n=64, s=19.6, x̄ =87.3,
n=64, s=19.6, 98% confidence
E=E=
Round to two decimal places
< μ < < μ <
Round to two decimal places
b. x̄ =31.6, n=44, s=14.6, x̄ =31.6,
n=44, s=14.6, 90% confidence
E=E=
Round to two decimal places
< μ < < μ <
Round to two decimal places
Please provide correct answers. thanks
Calculate the margin of error and construct a confidence interval for the population proportion using the...
Calculate the margin of error and construct a confidence
interval for the population proportion using the normal
approximation to the p̂ p̂ -distribution (if
it is appropriate to do so).
Standard Normal Distribution Table
a. p̂ =0.9, n=160, α =0.2
p̂ =0.9, n=160, α =0.2
E=E=
Round to four decimal places
Enter 0 if normal approximation cannot be used
< p < < p <
Round to four decimal places
Enter 0 if normal approximation cannot be used
b. p̂ =0.45, n=140, α
=0.2 p̂ =0.45, n=140, α =0.2...
Find the mean, standard deviation, 80%, 95%, and 99% confidence intervals, and margin of error for...
Find the mean, standard deviation,
80%, 95%, and 99% confidence intervals, and margin of error for
those intervals. Show all work.
$32,096
$29,716
$29,227
$27,209
$22,794
$19,306
$19,238
$19,164
18,994
$18,329
$17,978
$17,626
$16,823
$16,709
$15,967
$15,921
$15,908
$15,905
$15,638
$15,629
$14,414
$14,229
$14,137
$14,051
$13,907
$13,776
$13,281
$12,739
$12,300
$11,994
$11,262
$11,112
$10,984
$10,824
$10,823
$10,448
$10,081
$9,883
$9,668
$9,663
$9,337
$8,855
$8,741
$8,596
$8,385
$7,204
$7,072
$6,503
$5,653
$4,602
construct the indicated confidence intervals for the population variance and the poplulation standard deviation. assume the...
construct the indicated confidence intervals for the population
variance and the poplulation standard deviation. assume the sample
is from a normally distributed population. c=0.95, s2=15.40,
n=25
3.For a 95% confidence level, with a standard deviation equal to 25 and a sampling error...
3.For a 95% confidence level, with a standard deviation equal to
25 and a sampling error of 5, calculate the sample size
a.99.96
b.61.47
c.96.04
d.75.00
Sigma known Ratings Population Standard Deviation 2.64 Mean 42.95384615 95% CI Margin of Error Standard Error...
Sigma known
Ratings
Population Standard Deviation
2.64
Mean
42.95384615
95% CI Margin of Error
Standard Error
0.327747828
0.641805331
Median
43
95% Confidence Interval
Mode
44
42.31204082
43.59565148
Standard Deviation
2.642387469
99% CI Margin of Error
Sample Variance
6.982211538
0.843188126
Kurtosis
-0.392154755
99% Confidence Interval
Skewness
-0.446608112
42.11065803
Range
12
43.79703428
Minimum
36
Maximum
48
Sum
2792
Sigma Unknown
Count
65
95% Confidence Interval
Confidence Level(95.0%)
0.654751556
42.2990946
43.60859771
State the 95% confidence interval for sigma
unknown.
What is the multiplier...
Find the point estimate, the standard error, and the margin of error for the given confidence...
Find the point estimate, the standard error, and the margin of
error for the given confidence level and values of
x and n. x=45, n=97, confidence level 95%
(a) Find the point estimate.
(b) Find the standard error.
(c) Find the margin of error.
Determine the margin of error for a confidence interval to estimate the population proportion for the...
Determine the margin of error for a confidence interval to
estimate the population proportion for the following confidence
levels with a sample proportion equal to 0.36 and n=125.
a. 90%
b. 95%
c. 98%
a. The margin of error for a confidence interval to estimate the
population proportion for the 90% confidence level is _
b. The margin of error for a confidence interval to estimate the
population proportion for the 95% confidence level is _
c. The margin of...
Determine the margin of error for a confidence interval to estimate the population proportion for the...
Determine the margin of error for a confidence interval to
estimate the population proportion for the following confidence
levels with a sample proportion equal to
0.45 and n equals=120.
a. 90%
b. 95%
c. 99%
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