Question

Construct an 80% confidence interval to estimate the population mean when x overbarequals139 and s = 29 for the sample sizes below.

a) n=30 b) n=60 c) n=100

a) The 80% confidence interval for the population mean when n=30 is from a lower limit --- of nothing to an upper limit of---- nothing. (Round to two decimal places as needed.)

b) The 80% confidence interval for the population mean when n=60 is from a lower limit--- of nothing to an upper limit----- of nothing. (Round to two decimal places as needed.)

c) The 80% confidence interval for the population mean when n=s100 is from a lower limit of------ nothing to an upper limit of----- nothing. (Round to two decimal places as needed.)

Answer #1

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...

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.)

Construct a 98% confidence interval to estimate the population
mean when x overbar =64 and s =12.8 for the sample sizes
below.
a) n= 21
b) n=41
c) 56
a) The 98% confidence interval for the population mean when
n=21 is from a lower limit of _______to an upper limit of
________.
(Round to two decimal places as needed.)
b) The 98% confidence interval for the population mean when
n=41 is from a lower limit of _______to an upper...

Determine the margin of error for an 80% confidence interval to
estimate the population mean with sigmaequals51 for the following
sample sizes. a) n equals 35 b) n equals 41 c) n equals 60 Click
the icon to view the cumulative probabilities for the standard
normal distribution
. a) When nequals35, the margin of error for an 80%
confidence interval is____. (Round to two decimal places as
needed.)
b) When nequals41, the margin of error for an 80% confidence
interval...

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

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 99% confidence interval to estimate the population
mean using the data below.
x overbarx=15
s=5.6
n=12
What assumptions need to be made about this population?
The 99% confidence interval for the population mean is from a
lower limit of ____ to an upper limit of ____

Determine the margin of error for a 99% confidence interval to
estimate the population mean when s = 40 for the sample sizes
below. a) nequals12 b) nequals25 c) nequals50
a) The margin of error for a 99% confidence interval when
nequals12 is _____. (Round to two decimal places as needed.)
b) The margin of error for a 99% confidence interval when
nequals25 is ____. (Round to two decimal places as needed.)
c) The margin of error for...

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 a? 99% confidence interval to estimate the population
mean using the data below. x?=25 , s=4.5 , n=22 , N=180. The 99%
confidence interval for the population mean is? (Round to two
decimal places)

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