Question

Construct a 95% confidence interval to estimate the population mean when x=122 and s =28 for the sample sizes below.

a) n=30 b) n=70 c) n=90

a) The 95% confidence interval for the population mean when n=30 is from a lower limit of to an upper limit of. (Round to two decimal places as needed.)

b) The 95% confidence interval for the population mean when n=70 is from a lower limit of to an upper limit of . (Round to two decimal places as needed.)

c) The 95% confidence interval for the population mean when n=90 is from a lower limit of nothing to an upper limit of nothing . (Round to two decimal places as needed.)

Answer #1

Construct a 90% confidence interval to estimate the population
mean when x =62 and s =13.5 for the sample sizes below.
a)
n=20
b)
n=40
c)
n=60
a) The 90% confidence interval for the population mean when
n=20 is from a lower limit of nothing to an upper limit of nothing.
(Round to two decimal places as needed.)

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%...

Construct a 95% confidence interval to estimate the population
mean using the data below.
With 95 % confidence, when nequals= 50 the population mean is
between a lower limit of _____ and an upper limit of ______

Construct an 80% confidence interval to estimate the population
mean when x=129 and s=27 for the sample sizes below.
a) n=40. b) n=70 c) n =90

Construct a 95% confidence interval to estimate the population
proportion with a sample proportion equal to 0.60 and a sample size
equal to 450. LOADING... Click the icon to view a portion of the
Cumulative Probabilities for the Standard Normal Distribution
table. A 95% confidence interval estimates that the population
proportion is between a lower limit of nothing and an upper limit
of nothing.

Construct a 90% confidence interval of the population
proportion using the given information. x equals 240 comma n equals
300 The lower bound is nothing. The upper bound is nothing. (Round
to three decimal places as needed.)

Construct 90%, 95%, and 99% confidence intervals to estimate μ
from the following data. State the point estimate. Assume the data
come from a normally distributed population. 13.3 11.6 11.9 12.2
12.5 11.4 12.0 11.7 11.8 13.3
(Round the intermediate values to 4 decimal places. Round your
answers to 2 decimal places.)
90% confidence interval: enter the lower limit of the 90%
confidence interval ≤ μ ≤ enter the upper limit
of the 90% confidence interval
95% confidence interval: enter the...

Construct 90%, 95%, and 99% confidence intervals to estimate μ
from the following data. State the point estimate. Assume the data
come from a normally distributed population. 13.7 11.6 11.9 13.0
12.5 11.4 12.0 11.7 11.8 13.7 Appendix A Statistical Tables (Round
the intermediate values to 4 decimal places. Round your answers to
2 decimal places.) 90% confidence interval: enter the lower limit
of the 90% confidence interval ≤ μ ≤ enter the upper limit of the
90% confidence interval...

Construct the confidence interval for the population mean μ.
c=0.95, x= 9.5,σ=0.8,and n=44
A 95% confidence interval form μ is(_,_) (Round to two decimal
places as needed.)

Construct a confidence interval of the population proportion at
the given level of confidence.
x=540, n=1100, 95% confidence
The lower bound of the confidence interval is _______.
(Round to three decimal places as needed.)
The upper bound of the confidence interval is_______.
(Round to three decimal places as needed.)

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