You are told to construct a 13.8 percent confidence interval Find the critical value (Zc) (Two tail) Round to 3 decimals

Q: If n = 100 and p (p-hat) = 0.9, construct a 95% confidence %3D interval. Give your answers to three…

A: Givensample size(n)=100p^=0.9α=1-0.95=0.05α2=0.025zc=zα2=z0.025=1.96   (from z table)

Q: What is the critical t-value (found in the t-table) if you are making a 90% confidence interval with…

A: Confidence level=90%Sample size(n)=20

Q: Suppose you want to produce an estimate on the percent of students who return to college after their…

A:

Q: or each combination of sample size and sample proportion, find the approximate margin of error for…

A: We find Margin of Error (M.E)  for 95% C.I. (d) (e)

Q: If n = 600 and p (p-hat) = 0.7, construct a 95% confidence interval. Give your answers to three…

A: It is given that, n = 600 and p (p-hat) = 0.7. we have to find the 95% confidence interval for true…

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: The confidence interval was (41%, 45%) What was the margin of error? +/- % What was the summary…

A:

Q: Find the margin of error at 94% confidence interval for n=347 and p = 0.42 Give your answer to three…

A:

Q: AT scores are distributed with a mean of 1,500 and a standard devieation of 287. You are interested…

A: Given that, Critical value: Using the z-table, the critical value at 85% confidence level is ,

Q: How does the 90% confidence interval compare to the 95 % interval?

A: Given data : How does the 90% confidence interval compare to the 95 % interval?

Q: Confidence level-99%, degrees of freedom=19 JE

A:

Q: Generally speaking, what is the difference between a confidence interval and a prediction

A:

Q: If n= 208 and hatp = 0.46, construct a 95% confidence interval Round your answer to the three…

A: Answer: From the given data, Sample size (n) = 208 p^ = 0.46 95% confidence interval, significance…

Q: Let's say you survey a random sample of 70 people. You ask the people in your survey if they prefer…

A: given data  n = 70 p = 0.53 95% ci for p margin of error (E) = ?

Q: If n = 600 and p (p-hat) = 0.75, construct a 95% confidence interval. Give your answers to three…

A: Givenp^=0.75n=600Confidence interval(c)=95%α=1-0.95=0.05α2=0.025Critical value(zc)=zα2=z0.025=1.96…

Q: Find the critical value for an 81% confidence interval when the sample is 6. (Round your answer to…

A: It is required to find the critical value for an 81% confidence interval for n=6. This can be done…

Q: You are told to construct a 13.5 percent confidence interval Find the critical value (Zc) (Two tail)…

A: According to the given information in this question We need to find the critical value

Q: The 96% confidence interval for a population proportion is (0.36, 0.48). Using the confidence…

A: Answer: From the given data, The 96% confidence interval of a population proportion is: (0.36, 0.48)

Q: What is the upper bound of the confidence interval? A 98% confidence interval for the data: 25, 38,…

A: We have given data, X 25 38 62 45 61 38 21 42 31 35 The confidence level is 1-α=0.98.

Q: If n = 160 and p (p-hat) = 0.85, construct a 95% confidence interval. Give your answers to three…

A:

Q: Find the margin of error at a 80% confidence level for estimating the population mean if n=11,¯x=39…

A: Givenn=11x=39s=6

Q: margin of error for a 95% confidence interval is approximately 2 times the standard error.  True…

A: The standard error can be calculated as: SE=σnorSE=sn Here, σ  or s = Standard deviation n = Sample…

Q: If n = 320 and p (p-hat) = 0.7, construct a 90% confidence interval. Give your answers to three…

A:

Q: What is the impact of changing from the 95% confidence interval to the 90% confidence interval? The…

A: Confidence Interval Confidence Interval refers to the range of the value that we expect our estimate…

Q: If n=540 and (p-hat) = 0.13, construct a 99% confidence interval. Give your answers to three…

A: We have given that,  Sample size (n) = 540  Sample proportion (p-hat) = 0.13 Then,  We will find the…

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 600…

A: Obtain the 95% confidence interval for the true proportion of adult residents who are parents in…

Q: Construct a 95% confidence interval estimate. How does this change your answer to (b)?

A: (d)

Q: If n=240 and X = 192, construct a 90% confidence interval. Enter your answer as an open-interval…

A: 1. The given values are n=240,x=192. The proportion of x is, p^=xn=192240=0.8 Computation of…

Q: For each scenario below, decide if it would be appropriate to use (1) Critical z-values or (2)…

A: Solution To find the confidence interval we will use Excel According to the guidelines we solve only…

Q: Explain when you would use the z value or the t-value to calculate a confidence interval

A: Z value: The z value is used for finding the confidence intervals for single population proportion,…

Q: In a sample there are 234 people.  If you were going to do a confidence interval for population mean…

A:

Q: A study found a confidence interval on the proportion of children that are hearing impaired was 0.04…

A: Given confidence interval is 0.04 to 0.16 i.e., p-E=0.04 -->1 p+E=0.16 -->2

Q: raw score that is 1.96 blank above the sample mean

A:

Q: How do you find the z value for a confidence level? If n=330 and (p-hat)=0.62, I'm looking to find…

A: Obtain the margin of error at the 95% confidence level. Margin of Error: The margin of error is…

Q: Create a 95% confidence interval for the percent of people who shop on Amazon, using the Plus 4…

A: Given: ∝ = 0.05 n = 50 x = 47 Thus, p^= x/n = 47/50 = 0.94

Q: If n=510 and p (p-hat) =0.47, find the margin of error at a 90% confidence level Give your answer as…

A:

Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…

A:

Q: If n = 140 and p (p-hat) = 0.8, construct a 95% confidence interval. %3D Give your answers to three…

A: We want to find the 95% CI for population proportion

Q: whats a confidence interval?

A: Confidence intervals: Confidence intervals are the limits for the point estimate of population…