Determine the specified confidence interval. It has been estimated, with 90% confidence, the proportion of Americans who go out shopping on Black Friday is 0.40 with a margin of error equal to 0.04. Determine the resulting 90% confidence interval for the proportion of Americans who go out shopping on Black Friday. O (0.40 , 0.44) O (0.36 , 0.44) O (0.38 , 0.42) (0.86,0.94) O (0.36 , 0.40)

Q: . Find a 90​% confidence interval for μ. The 90​% confidence interval is from $______million to…

A: a). Given, n=18σ=1.87α=1-0.90=0.10 The sample mean is obtained as-…

Q: Construct the confidence interval for the population mean μ. c = 0.90, x= 16.9, o = 5.0, and n = 50…

A: c=0.90Mean()=16.9standard deviation()=5.0sample size(n)=50

Q: Construct the confidence interval for the population mean μ.   c=0.90​, x=15.5​, σ=10.0​, and n= 80…

A:

Q: A 95% confidence interval for p is given as (0.28,0.52). How large was the sample used to construct…

A: The lower confidence limit, L=0.28 The upper confidence limit, U=0.52 The confidence interval is…

Q: Construct the confidence interval for the population mean μ.   c=0.98​, x=15.6​, σ=4.0​, and n=40…

A:

Q: A 98% confidence interval for the mean reading achievement score for a population of third-grade…

A: We want to tell you which one is the correct choice

Q: Researchers randomly selected 50 males between the ages of 25 and 44 years to participate in a…

A: The given 95% confidence interval for the proportion of all males between 25 and 44 years old with…

Q: Find a 95% confidence interval for a mean, µ, where n = 324, x̄ = 2.7, s = .91, and se = .06.

A: Given: n = 324, x̄ = 2.7, s = .91, se = .06.

Q: Construct the confidence interval for the population mean μ. c = 0.90, x=4.7, o=0.8, and n =47 A 90%…

A: From the provided information,Confidence level (c) = 0.90Sample mean (x̄) = 4.7Standard deviation…

Q: A 95% confidence interval for the mean (p) of a population is computed from a random sample and…

A: A confidence interval is an inference process which gives the range of plausible values of the true…

Q: 95% confidence interval for a proportion has a lower bound of 0.30 and a margin of error of 0.05. 1.…

A:

Q: Construct the confidence interval for the population mean μ. c=0.90​, x=16.9​, σ=8.0​, and n=

A: If the population standard deviation is known we can use z test for computing confidence interval…

Q: Example 4.3.4. We are interested in estimating the population of fish in a lake. A sample of 150…

A: Given that

Q: Which interval is which? Matilda constructed three confidence intervals, all from the same random…

A: When the confidence interval increases the width of the confidence interval will increase condition…

Q: Assume that population mean is to be estimated from the sample described. Use the sample results to…

A: Given95% confidence interval N=361 x = 59.1 seconds. z= 4.9 SecondsFind the margin of error?

Q: Construct the confidence interval for the population mean u. c= 0.98, x= 16.2, o =6.0, and n= 100…

A:

Q: Construct the confidence interval for the population mean μ. c= 0.90, x= 5.4, o=0.4, and n = 58

A: The confidence level c=0.90 Sample mean = 5.4 Population standard deviations= 0.4 Sample size n= 58…

Q: A 90​%confidence interval for μ is  ​(Round to one decimal place as​ needed.)

A:

Q: Construct the confidence interval for the population mean u. c= 0.90, x = 9.6, o = 0.7, and n= 47 A…

A: x¯ = 9.6σ = 0.7n = 47c = 0.90

Q: A sample of 260 observations selected from a population produced a sample proportion equal to 0.85.…

A: From the given information, let X be the number of observations selected from the population. Total…

Q: Construct the confidence interval for the population mean μ. c=0.95​, x=8.4​, σ=0.3​, and n=41

A: confidence level=0.95 Mean(x)=8.4 standard deviation(σ)=0.3 sample size(n)=41

Q: Construct the confidence interval for the population mean u. c= 0.95, x = 5.7, o = 0.2, and n= 55 A…

A:

Q: You have been asked to determine the proportion of all out-of-state fishermen who took at least one…

A: As given,  The estimate to be within +/- 2% . This implies, the margin of error (E) = 2% or 0.02…

Q: A 90% confidence interval for a population proportion , p, is 0.267 < p < 0.387. What is the margin…

A: SolutionGiven the 90% confidence interval for a population proportion, is 0.267 &lt; p &lt; 0.387.

Q: Construct the confidence interval for the population mean μ. c= 0.95, x= 9.6, o=0.4, and n = 54 A…

A: C=95%=0.95 α=1-C.I=1-0.95=0.05

Q: Construct the confidence interval for the population mean µ. c= 0.98, x = 6.9, o = 0.3, and n= 40 A…

A: Given : Sample Size , n= 40 Sample Mean , x̄ =6.9 population standard deviation , σ =0.3…

Q: Construct the confidence interval for the population mean p. c= 0.95, x 8.9, o=0.7, and n= 46

A: As the population standard deviation is known, we will use z distribution. The value of z at 95%…

Q: Construct the confidence interval for the population mean μ. c = 0.98, x = 9.1, o=0.8, and n = 44 A…

A: Answer:- Given, Confidence level, c = 0.98Sample mean,  = 9.1 Population standard deviation, σ = 0.8…

Q: wsgroup is interested in constructing a 95% confidence interval for the proportion of all Americans…

A: given data, CI=0.95α=1-0.95=0.05n=504x=448p^=xn  =448504  =0.8888

Q: Construct the confidence interval for the population mean u. c= 0.98, x = 16.4, o = 2.0, and n= 100…

A:

Q: Construct the confidence interval for the population mean µ. c = 0.90, x = 16.5, o = 9.0, and n= 35…

A: Solution: From the given information, the confidence level is 0.90, x-bar=16.5, σ=9 and n=35.

Q: Construct the confidence interval for the population mean u. c = 0.98, x= 4.2, o = 0.6, and n= 57 A…

A:

Q: a hamburger chain sells hamburger. A random sample of 25 hamburger is taken and each is weighed. the…

A: The mean of this sample is 0.26 pound and the standard deviation of 0.03 pound. Also, it is given…