Question

c=0.95,x=14.3,s=4.0,n=5

Answer #1

it is given that

c=0.95 confidence level, so significance level =1 - c = 1-0.95 = 0.05

x=14.3 sample mean

s=4.0 sample standard deviation

n=5 sample size

degree of freedom = n-1 = 5- 1 = 4

using excel function T.INV.2T(probability, df)

setting probability = 0.05 and df= 4

we get, t critical = 2.776

Confidence interval is

setting the values, we get

**So, required 95% confidence interval is
(9.33,19.27)(rounded to 2 decimals) or (9.3,19.3)(rounded to 1
decimals)**

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mean mu? using a? t-distribution.
c=0.95, x =110,s= 10, n=27
The confidence interval is
?(Round to the nearest tenth as? needed.)

Construct the confidence interval for the population mean μ.
c=0.95
x overbar=15.9
σ=9.0
and n=55
A 95% confidence interval for is μ is (__,__)

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.)

The statistics of n=22 and s=14.3 result in this? 95% confidence
interval estimate of ??: 11< ? <20.4.
That confidence interval can also be expressed as? (11.0, 20.4).
Given that 15.7plus or minus±4.7 results in values of 11.0 and?
20.4, can the confidence interval be expressed as 15.7plus or
minus±4.7 as? well?
Choose the correct answer below.
A.Yes. In? general, a confidence interval for ? has s at the
center.
B.No. The format implies that s=?15.7, but s is given...

Match the level of confidence, c=0.95 with its representation
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and
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Exercise 5-69 Algo
Assume that X is a hypergeometric random variable with
N = 19, S = 7, and n = 6. Calculate the
following probabilities. (Round your answers to 4 decimal
places.)
a. P(X=1)
b. P(X=6)
C. P(X>or equal to 2)

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Three point charges are fixed on the x-axis: 6.0×10−6 C at x =
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Find the electrostatic force acting on the charge at the origin due
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