Question

Use given degree of confidence and sample data to construct a confidence interval for the population mean. Assume that the population has a normal distribution. N=30, sample mean =84.6, s=10.5%, 90% confidence

Answer #1

Use the given degree of confidence and sample data to construct
a confidence interval for the population mean μ. Assume that the
population has a normal distribution.
n =30,x bar =84.6, s=10.5, 90% confidence
.
A.79.32 <μ <89.88
B.81.34 <μ <87.86
C. 80.68 <μ <88.52
D.81.36 <μ <87.84

Use the given degree of confidence and sample data to construct
a confidence interval for the population mean μ. Assume that the
population has a normal distribution.
n = 30, = 84.2, s = 18.4, 90% confidence

Use the given degree of confidence and sample data to construct
a confidence interval for the population mean μ. Assume that the
population has a normal distribution. Thirty randomly selected
students took the calculus final. If the sample mean was 90 and the
standard deviation s = 6.7, construct a 99% confidence interval for
the mean score of all students

Use the given degree of confidence and sample data to construct
a confidence interval for the population mean. Assume that the
population has a normal distribution n=96 x=87.1 standard
deviation=6.2; 99% confidence

Use the given degree of confidence and sample data to construct
a confidence interval for the population standard deviation Assume
that the population has a normal distribution.
A laboratory tested seventy-one chicken eggs and found that the
mean amount of cholesterol was 215milligrams with s =12.1
milligrams. Construct a 90% confidence interval for the true
standard deviation of cholesterol content of all such eggs.
please show work or explain

Use the given degree of confidence and sample data to
construct a confidence interval for the population mean μ. Assume
that the population has a normal distribution.
A sociologist develops a test to measure attitudes towards public
transportation, and 27 randomly selected subjects are given the
test. Their mean score is x ¯ = 76.2 and their standard deviation
is s = 21.4. Construct the 95% confidence interval for the mean
score of all such subjects.

Use the given degree of confidence and sample data to
construct a confidence interval for the population mean
µ. Assume that the population has a normal
distribution.
A laboratory tested twelve chicken eggs and found that the mean
amount of cholesterol was 239 milligrams with s = 13.3 milligrams.
Construct a 95 percent confidence interval for the true mean
cholesterol content of all such eggs.
Group of answer choices
(230.4, 247.6)
(230.5, 247.5)
(230.6, 247.4)
(232.1, 245.9)

Use the given degree of confidence and sample data to construct
a confidence interval for the population mean μ. Assume that the
population has a normal distribution. A laboratory tested twelve
chicken eggs and found that the mean amount of cholesterol was 185
milligrams with s=17.6 milligrams. Construct a 95% confidence
interval for the true mean cholesterol content of all such
eggs.
A.173.7mg <μ <196.3mg
B.173.8mg <μ <196.2mg
C.175.9mg <μ <194.1mg
D.173.9mg <μ <196.1mg

Use the given degree of confidence and sample data to construct
a confidence interval for the population mean μ. Assume that the
population has a normal distribution. Thirty randomly selected
students took the calculus final. If the sample mean was 95 and the
standard deviation was 6.6, construct a 99% confidence interval
for the mean score of all students.
A.92.95 <μ <97.05
B.92.03 <μ <97.97
C.91.69 <μ <98.31
D.91.68 <μ <98.32

Use the given degree of confidence and sample data to construct
a confidence interval for the population mean μ. Assume that the
population has a normal distribution. n = 50, x = 74.6, s = 11.5,
99% confidence level. Hints: determine if the ? is known?
a)State the hypothesis
b)State the test statistic value
c)State the p value
d)Determine the null hypothesis
e) Concluding statement
[I checked twice. This is the exactly same question I got, no
more information given....

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 7 minutes ago

asked 13 minutes ago

asked 13 minutes ago

asked 14 minutes ago

asked 19 minutes ago

asked 21 minutes ago

asked 23 minutes ago

asked 32 minutes ago

asked 32 minutes ago

asked 48 minutes ago

asked 1 hour ago

asked 1 hour ago