If n=28, (x-bar)-30, and s-6, find the margin of error at a 98% confidence level Give your answer to two decimal places. Submit Question

Q: Express the confidence interval 0.517 + 0.054 in interval form. You may use (lower, upper) or…

A: Given confidence interval0.517 ± 0.054

Q: If n - 180 and p (p-hat) = 0.3, construct a 99% confidence interval. Give your answers to three…

A: Find z-critical value:…

Q: Sales team of a New Ventures Company is in the process of introducing a new product. As an initial…

A: We want to find the sample size.

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

Q: Construct a confidence interval for P₁ P2 at the given level of confidence. x₁ =397, n₁ = 523, Xx2 =…

A: It is given that, For the first sample: x1 (no. of sample elements with some defined…

Q: Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 24.…

A: The confidence level: C=0.95 The sample size: n=24

Q: Suppose we know that a confidence interval is (43, 48.7). Find the error bound and the sample mean.…

A:

Q: A poll of 1468 U.S. adults found that 44% regularly used Facebook as a news source. Find the…

A: Given information Sample size (n) = 1468

Q: he given confidence interval to find the margin of error and the sample mean.   ​(66.9 ​,81.9 ​)

A: The sample mean can be calculated as: =LowerLimit+UpperLimit2=66.9+81.92=74.4 The sample mean is…

Q: Express the confidence interval (76.2%, 93.2%) in the form of p+E. % ± ae

A: Confidence interval=(76.2% , 93.2%)Upper limit=93.2%Lower limit=76.2%

Q: Use the given confidence interval to find the margin of error and the sample mean.   ​(70.7​,85.7​)…

A: Use the given confidence interval to find the margin of error and the sample mean.   ​(70.7​,85.7​)…

Q: Use the confidence interval to find the margin of error and the sample mean.   (1.69,2.07) The…

A: Given Confidence interval (1.69,2.07)

Q: Use the confidence interval to find the margin of error and the sample mean. (1.53,2.03) The margin…

A: The confidence interval is  CI =(LB,UB) CI = (1.53,2.03)

Q: All the necessary values have been found to find the 95% confidence interval. We have x = 832, Za/2…

A: From the provided information, x̄ = 832 Zα/2 = 1.960 σ = 150 and n= 100

Q: The confidence interval for a population mean is (7.36, 7.52). What the the sample mean and the…

A: Solution: Given information: The confidence interval for a population mean μ is ( 7.36, 7.52) Upper…

Q: State whether each standardized test statistic y allows you to reject the null hypothesis. Explain.…

A: Chi square dist

Q: Use the confidence interval to find the estimated margin of error. Then find the sample mean.   A…

A: Given: confidence interval ( 45.3 , 82.3 ) Need to find sample mean(x̄) and margin of error(ME) .

Q: Construct a confidence interval for p, - P2 at the given level of confidence. X, = 352, n, = 548, x,…

A: Given that  Sample sizes n1=548 , n2=577 Favorable cases x1=352 , x2=423

Q: Use the confidence interval to find the margin of error and the sample mean. (1.70,2.04) The margin…

A: From the provided information, Confidence interval (1.70, 2.04)

Q: Direction: Solve the given problem by SHOWING YOUR COMPLETE SOLUTION. A researchsr claims thal 25%…

A: Given  Sample size=n=40 X=Favorable=8 p0=25%=0.25 p=X/n

Q: Express the confidence interval (45.7 % , 59.5 % ) in the form of p + ME.

A: From the provided information, Confidence interval is (45.7%, 59.5%)

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: As per our company guidelines we are supposed to answer only first question. Kindly repost other…

Q: Construct a confidence interval for p, -p2 at the given level of confidence. X, = 378, n, = 542, x,…

A:

Q: Construct a confidence interval for p, - P2 at the given level of confidence. X1 = 25, n, = 257, x2…

A:

Q: Code all the parts in r studio. This question was posted before but it is the wrong answer so please…

A: Given Information: Mean μ=1995 Standard deviation σ=9 Labeled amount is 2000. (a) To find the…

Q: The confidence interval for a population porportion is (0.57, 0.73). What the the sample proportion…

A: Given the confidence interval for a population porportion is (0.57, 0.73).That is, lower confidence…

Q: For each of the following, decide whether the proper inference is a prediction interval for y or a…

A: We have to decide which one is predictive interval or the confidence interval.

Q: Use the confidence interval to find the margin of error and the sample mean. (1.48,2.08) The margin…

A:

Q: If n=120 and p (p-hat) =0.31, find the margin of error at a 99% confidence level Give your answer to…

A: Sample size, n = 120 p^ = 0.31 99% confidence level

Q: Express the confidence interval (79.7%, 93.5 %) in the form of p + ME. % ± %

A: The confidence interval is (79.7% , 93.5%)Lower confidence limit=79.7%Upper confidence limit=93.5%

Q: Out of 400 people sampled, 288 had kids. Based on this, construct a 99% confidence interval for the…

A: In statistical inference, there are two types of estimation,  1) Point estimation and 2) Interval…

Q: In a survey of 3361 adults in a country, 44% believe the economy is getting better. Three weeks…

A: Given Information: In a survey of 3361 adults in a country, 44% believe the economy is getting…

Q: Construct a confidence interval for p, - pP2 at the given level of confidence. X1 = 33, n1 = 255,…

A:

Q: 3) Construct a 95% confidence interval using the appropriate single Excel function to find the…

A: Solution

Q: Construct a confidence interval for p, - P2 at the given level of confidence. x, = 367, n, = 541, x2…

A:

Q: Use the given confidence interval to find the margin of error and the sample mean.   ​(70.5​,84.7​)

A:

Q: If n = 81, -45, and s to one decimal place. = 8, construct a confidence interval at a 90% confidence…

A:

Q: the difference P-P2 when x 40, n, = 80, x, = 20, and n, nce in 60. Round the answer to at least…

A: Given : n1 = 80 x1 = 40 n2 = 60 x2 = 20 confidence level,c=0.8

Q: If n-350 and (p-hat) -0.88, find the margin of error at a 95% confidence level Give your answer as a…

A:

Q: Determine the point estimate of the population mean and margin of error for the confidence interval.…

A: The objective is to estimate the population mean and margin of error. Given that the lower bound is…

Q: A survey was conducted that asked 959 people how many books they had read in the past year. Results…

A:

Q: Please solve using the 5 steps, thank you. Oil wells in a large field produce an average of 3.5…

A:

Q: Use the given confidence interval to find the margin of error and the sample mean.   ​(68.3​,80.9​)…

A: The given confidence interval is (68.3​,80.9​)

Q: In a recent poll, 150 people were asked if they liked olives, and 23% said they did. Find the margin…

A: Given: n=150 p=0.23 α=0.1

Q: Construct a confidence interval for p, - P2 at the given level of confidence. x1 = 384, n, = 508, x2…

A: Obtain the 90% confidence interval for the difference between two population proportions. The 90%…