Question
Calculate the appropriate confidence interval for: a. the population mean, if the sample mean is 17,...
Calculate the appropriate confidence interval for:
a. the population mean, if the sample mean is 17, the sample size is 25, and the sample variance is 6, 95% confidence
b. the population mean, if the sample mean is 75, the sample size is 5, and the sample variance is 8, 90% confidence
c. the population variance, if the sample variance is 4.5, the sample size is 6, and the confidence is 98%
d. recalculate part a for 90% confidence
e. recalculate part b with a sample size of 10
f. recalculate part c with a sample size of 10 and a confidence of 90%
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean,...
Assuming that the population is normally distributed, construct
a 95% confidence interval for the population mean, based on the
following sample size of n=8.
1, 2, 3, 4, 5, 6, 7 and 16
In the given data, replace the value 16 with 8 and recalculate
the confidence interval. Using these results, describe the effect
of an outlier (that is, an extreme value) on the confidence
interval, in general.
Find a 95% confidence interval for the population mean, using
the formula...
Calculate the population confidence interval with a sample mean of 5, a sample size of 1000,...
Calculate the population confidence interval with a sample mean
of 5, a sample size of 1000, a confidence level of 95 percent, and
a population standard deviation of 2.
A 95% confidence interval for the mean of a population is computed to be 6 to...
A 95% confidence interval for the mean of a population is
computed to be 6 to 14. Which one of the following claims would the
interval tend to support?
A. The population mean is more than 7
B. The population mean is less than 15.
C. The population mean is exactly 9.
D. The population mean is between 8 and 10.
E. The population mean is more than 17.
(b) A 90% confidence interval for the mean of a population...
Assuming that the population is normally distributed, construct a 95 % confidence interval for the population...
Assuming that the population is normally distributed, construct
a 95 % confidence interval for the population mean, based on the
following sample size of n equals 5.n=5.
1,2,3,4 and 17
In the given data, replace the value 17 with 5 and recalculate
the confidence interval. Using these results, describe the effect
of an outlier (that is, an extreme value) on the confidence
interval, in general.
Find a 95 % confidence interval for the population mean, using
the formula or technology.
1,) Construct a 90% confidence interval for the population proportion if an obtained sample of size...
1,) Construct a 90% confidence interval for the population
proportion if an obtained sample of size n = 150 has x = 30
2.) Construct a 95% confidence interval for the population mean
if an obtained sample of size n = 35 has a sample mean of 18.4 with
a sample standard deviation of 4.5.
Mean Sample standard deviation Population standard deviation Sample size Confidence level Confidence interval 100 20 na...
Mean
Sample standard deviation
Population standard deviation
Sample size
Confidence level
Confidence interval
100
20
na
25
95 %
100
20
na
25
90 %
100
40
na
25
90 %
100
40
n.a.
16
90 %
100
n.a.
40
16
90 %
How does the confidence level affect the width of the confidence
interval, other things equal?
How does the size of the standard deviation affect the width of
the confidence interval, other things equal?
How does sample size...
a. Find a 98% confidence interval for the true mean of a population if a sample...
a. Find a 98% confidence interval for the true mean of a
population if a sample of
52 results in a mean of 100. Assume the population standard
deviation is 12.
b. Assume now that the same results occurred, the population was
normal, and the
sample size was reduced to 10.
c. Repeat problem 2b assuming that the population standard
deviation was unknown, and
“s” was 12.
Assuming that the population is normally distributed, construct a 90 % confidence interval for the population...
Assuming that the population is normally distributed, construct
a 90 % confidence interval for the population mean, based on the
following sample size of n equals 6. 1, 2, 3, 4 comma 5, and 30
In the given data, replace the value 30 with 6 and recalculate the
confidence interval. Using these results, describe the effect of
an outlier (that is, an extreme value) on the confidence
interval, in general. Find a 90 % confidence interval for the
population mean,...
Find the margin of error for a 95% confidence interval for estimating the population mean when...
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...
Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean...
Assuming that the population is normally distributed, construct
a 95% confidence interval for the population mean for each of the
samples below. Explain why these two samples produce different
confidence intervals even though they have the same mean and
range.
Sample A: 1 3 3 4 5 6 6 8
Sample B: 1 2 3 4 5 6 7 8
Construct a 95% confidence interval for the population mean for
sample A.
Construct a 95% confidence interval for the population...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 6 minutes ago
asked 18 minutes ago
asked 31 minutes ago
asked 42 minutes ago
asked 42 minutes ago
asked 46 minutes ago
asked 51 minutes ago
asked 59 minutes ago
asked 59 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago