Question

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 limit of ________.

(Round to two decimal places as needed.)

c) The 98% confidence interval for the population mean when n=56 is from a lower limit of _______to an upper limit of ________.

(Round to two decimal places as needed.)

Answer #1

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...

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 with x=63 and σ equals =12 for the following sample sizes.
a) 30
b) 44
c) 64

Construct the confidence interval for the population mean mu.
cequals0.95, x overbar equals 4.8, sigmaequals0.4, and nequals57
A 95% confidence interval for mu is left parenthesis nothing comma
nothing right parenthesis . (Round to two decimal places as
needed.)

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

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...

f Upper X overbar=80, sigma=11, and n=69, construct a 95%
confidence interval estimate of the population mean, mu.

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