A 98% confidence interval for a population mean is given as 31.4 < μ < 40.8....
A 98% confidence interval for a population mean is given as 31.4 < μ < 40.8. Round your answers to 1 decimal place. (a) Calculate the sample mean. x = (b) Calculate the margin of error.
Homework Answers
A 98% confidence interval for a population mean is = (sample mean - margin of error, sample mean + margin of error)
Given
sample mean - margin of error = 31.4 ...(i)
sample mean + margin of error = 40.8 ...(ii)
a) Adding equation (i) and (ii), we get
2*sample mean = 31.4 + 40.8
b) Equation(ii) - Equation(i), we get
2*Margin of error = 40.8 - 31.4
Add Answer to:
A 98% confidence interval for a population mean is given as 31.4
< μ < 40.8....
6.1.23 construct the confidence interval for the population mean μ
6.1.23 construct the confidence interval for the population mean μ c = 0.98, x̅ = 15.7, σ = 4.0, and n=65 A 98% confidence interval for μ is OD (Round to one decimal place as needed.)6.1.27 Use the confidence interval to find the margin of error and the sample mean (1.58,2.06) The margin of error is (Round to two decimal places as needed.)
Use the t-distribution to find a confidence interval for a mean μ given the relevant sample...
Use the t-distribution to find a confidence interval for a mean μ given the relevant sample results. Give the best point estimate for μ, the margin of error, and the confidence interval. Assume the results come from a random sample from a population that is approximately normally distributed. A 99% confidence interval for μ using the sample results x¯=93.5, s=34.3, and n=15 Round your answer for the point estimate to one decimal place, and your answers for the margin of...
a.Construct the confidence interval for the population mea μ. c=0.98 x=16.3, σ=5.0, and n=95 A 98%...
a.Construct the confidence interval for the population mea μ. c=0.98 x=16.3, σ=5.0, and n=95 A 98% confidence interval for μ is ( ___ , ___ ) (Round to one decimal place as needed. b. Find the critical value tc for the confidence level c=0.98 and sample size n=13. tc= _____ (Round to the nearest thousandth as needed.) c. Find the margin of error for the given values of c, s, and n.c=0.80, s=4, n=28 The margin of error is _____...
A 98% confidence interval for a population proportion is given as 0.531 < p < 0.693....
A 98% confidence interval for a population proportion is given as 0.531 < p < 0.693. Round your answers to 3 decimal places. (a) Calculate the sample proportion. p̂ = (b) Calculate the margin of error. E =
Construct the confidence interval for the population mean μ. Construct the confidence interval for the population...
Construct the confidence interval for the population mean μ.
Construct the confidence interval for the population mean μ 0.98, x: 5.9, σ: 0.6, and n: 44 A 98% confidence interval for μ is OD (Round to two decimal places as needed.)
Answers only is okay! Construct the indicated confidence interval for the population mean μ using the...
Answers only is okay! Construct the indicated confidence interval for the population mean μ using the t-distribution. Assume the population is normally distributed. c=0.99, x=13.1, s=3.0, n= 6 Construct the indicated confidence interval for the population mean μ using the t-distribution. Assume the population is normally distributed. c=0.95, x=14.5, s=0.55, n= 15 Use the given confidence interval to find the margin of error and the sample mean. (12.7,19.9The sample mean is In a random sample of 18 people, the mean...
A) Construct the confidence interval for the population mean μ. c=0.98, (overbar) x=7.6, σ =0.7 and n=48...
A) Construct the confidence interval for the population mean μ. c=0.98, (overbar) x=7.6, σ =0.7 and n=48 A 98% confidence interval for μ is ( , ) B) Construct the confidence interval for the population mean μ. c=0.90 (overbar) x=16.2, σ=2.02 and n=70 A 90% confidence interval for μ is ( , ) C) Use the confidence interval to find the margin of error and the sample mean. left parenthesis 0.144 comma 0.280 right parenthesis (0.144,0.280) The margin of error is...
Construct a 98% confidence interval estimate for the mean μ using the given sample information. (Give...
Construct a 98% confidence interval estimate for the mean μ using the given sample information. (Give your answers correct to two decimal places.) n = 22, x = 18, and s = 2.5 -------to------
Construct the confidence interval for the population mean μ c: 0.95, x-16.8, σ: 9.0, and n-100...
Construct the confidence interval for the population mean μ c: 0.95, x-16.8, σ: 9.0, and n-100 A 95% confidence interval for μ is OD (Round to one decimal place as needed.) 6.1.27 Use the confidence interval to find the margin of error and the sample mean (1.58,2.06) The margin of error is (Round to two decimal places as needed) 6.1.31 Find the minimum sample size n needed to estimate μ for the given values of c, o, and E. cz...
Construct the indicated confidence interval for the population mean μ using the t-distribution
X6.2.9-TConstruct the indicated confidence interval for the population mean μ using the t-distribution. Assume the population is normally distributed c = 0.90, x̅ = 12.9, s = 4.0, n = 9 The 90% confidence interval using a t-distribution is 6.2.17-T In a random sample of 26 people, the mean commute time to work was 34.8 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 98% confidence interval for the population mean μ...
Construct the confidence interval for the population mean μ.
Construct the confidence interval for the population mean μ 0.98, x: 5.9, σ: 0.6, and n: 44 A 98% confidence interval for μ is OD (Round to two decimal places as needed.)
Construct the confidence interval for the population mean μ c: 0.95, x-16.8, σ: 9.0, and n-100 A 95% confidence interval for μ is OD (Round to one decimal place as needed.) 6.1.27 Use the confidence interval to find the margin of error and the sample mean (1.58,2.06) The margin of error is (Round to two decimal places as needed) 6.1.31 Find the minimum sample size n needed to estimate μ for the given values of c, o, and E. cz...
Most questions answered within 3 hours.
-
find the critical value associated with a right sided hypothesis of
the mean using a sample...
asked 1 hour ago -
Which of the following statements is true with respect to a
simple linear regression model?
a....
asked 2 hours ago -
The energy required to remove an electron from a surface of a
solid element is called...
asked 3 hours ago -
How would you train your employees to avoid risks of using
mobile devices?
asked 3 hours ago -
Assume Kw = 1.01 ✕ 10−14
For pure water, we can calculate [H3O+ ] = [OH...
asked 4 hours ago -
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 5 hours ago -
BaS crystallizes in a cubic unit cell with S2- ions on each
corner and each face....
asked 6 hours ago -
A. 0≤P(Oi)≤10≤P(Oi)≤1 for each i
B. P(Oi)≤0P(Oi)≤0
C. P(Oi)=1+P(OCi)P(Oi)=1+P(OiC)
D. P(Oi)≥1P(Oi)≥1
If an experiment consists of...
asked 7 hours ago -
A battery has an emf of 9.20V and an internal resistance of 1.20
ohm. a)What resistance...
asked 7 hours ago -
The area of an elastic circular loop decreases at a constant
rate, dA/dt = −6.60×10−3 m2/s...
asked 8 hours ago -
The denaturation of proteins can be described by the
equilibrium
F⇌U
where F and U represent...
asked 10 hours ago -
Please answer what the maximum and minimum force is, and the
angle on the ion is...
asked 10 hours ago