You are analyzing a confidence interval using a 95% confidence level in your analysis. You collect a sample with a size of 207, and find a pof 0.381. Using this information, what is the lower bound (lower end) of your confidence interval? Note: 1- Only round your final answer. Round your final answer to 3 decimal places.

Q: When finding the upper bound, U, of a confidence interval given the lower bound, L, and the margin…

A: The objective of this question is to find the upper bound of a confidence interval for the…

Q: You are interested in finding a 95% confidence interval for the mean number of visits for physical…

A: Given,mean(x¯)=13.6standard deviation (s)=9.1918sample size(n)=10degrees of…

Q: I've asked 91 students on Monday whether they did their homework over the weekend. 20 of them said…

A:

Q: survey to determine if the percentage of adults who use social media has changed from 52%, which was…

A: The sample proportion is computed as follows, The critical value for 96% confidence level, i.e.,…

Q: A health researcher computed 90%, 95%, 98%, and 99% confidence intervals for the proportion of…

A: Given that a health researcher computed 90%, 95%, 98%, and 99% confidence intervals for the…

Q: A random sample of 600 adults in Flagstaff found 90 adults who had lost a job in the past year. Find…

A: Step 1:Given data : Sample size n=600no. of successes x=90   Sample proportion p^​=60090​=0.15Let p…

Q: find the z-number associated with a 92% level of confidence. find the z-number associated with a…

A:

Q: Rosetta wants to estimate the percentage of people who rent their home. She surveys 250 individuals…

A: The formula for 100(1-α)% confidence interval for population proportion is,

Q: Find the margin of error and confidence interval for the percentage of U.S. adults who regularly use…

A:

Q: A poll of 1206 U.S. adults found that 51% regularly used Facebook as a news source. Find the…

A:

Q: Suppose you compute a 99% confidence interval. What will happen to the confidence interval if you…

A: To find: Change in confidence interval if it is decreased from 99% to 94%

Q: A poll of 2929 U.S. adults found that 85% regularly used Facebook as a news source. Find the…

A:

Q: A poll of 2657 U.S. adults found that 86% regularly used Facebook as a news source. Find the margin…

A: Given that, n = 2657 Point estimate = sample proportion =  = 0.86 1 -  = 1 - 0.86 = 0.14

Q: A poll of 2977 U.S. adults found that 28% regularly used Facebook as a news source. Find the margin…

A: Solution: Given information: n = 2977 Sample size  p^= 0.28  Sample proportion.

Q: Find the 95%95% confidence interval for the average value of net income given that sales are…

A: From the given information, a regression analysis has been performed to estimate the model. Here,…

Q: Find  z for a  90% confidence level. Round your answer to two decimal places.

A: Given confidence level is 90% Significance level is 10%

Q: roportion of US adults who say they never exercise. Round your answers to three decimal places.…

A: Given that  n=1000 , p=20%=0.20

Q: For a confidence level of 99% with a sample size of 22, find the t-score. Did not see how to work…

A: The provided information is:

Q: Construct the 99% confidence interval for the difference when 3-47688, -318.32, -42.11, -2680, -19,…

A: Test hypothesisNull Hypothesis H0: μ1=μ2Alternative Hypothesis Ha: μ1≠μ2For group 1 Sample size…

Q: You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You…

A: Suppose p is the true population proportion of workforce has two or more jobs.

Q: Suppose you compute a 96% confidence interval. What will happen to the confidence interval if you…

A: IF YOU DECREASE THE CONFIDENCE LEVEL FROM 96% T0 94%,DECREASES THE ERROR BOUND AND MAKES THE…

Q: magine that you conduct a study and estimate that the prevalence of hypertension among employees of…

A: From the provided information, Sample proportion (p̂) = 0.24 Margin of error for a 95% confidence…

Q: Find the value for each ta/2

A: From given data we have : n=15 confidence interval 96%

Q: Describe when you would use a t-score instead of a z-score when finding a confidence interval.

A: Describe in what conditions t-score would be used instead of a z-score when finding a confidence…

Q: you take a sample in equal 25 of test scores from a population. The sample mean is 38, and the…

A:

Q: Translate the statement into a confidence interval. Approximate the level of confidence. In a survey…

A: The confidence interval proportion is obtained below: From the given information, the proportion…

Q: A poll of 2368 U.S. adults found that 40% regularly used Facebook as a news source. Find the margin…

A: Solution: From the given information, n=2368, p-hat = 40%. The confidence level is 0.90.

Q: Find the confidence level and α for an 80​% confidence interval.

A: Given confidence level =80%

Q: A poll of 2338 U.S. adults found that 71% regularly used Facebook as a news source. Find the…

A: Given information Total US adults = 2338 Proportion of Adults, who used facebook = 0.71 Level of…

Q: A poll of 2338 U.S. adults found that 71% regularly used Facebook as a news source. Find the margin…

A:

Q: Find the value for each ta/2

A: Here n=29 The confidence level is 0.90 The degrees of freedom is n-1=29-1=28

Q: Find the confidence level and α for an 86​% confidence interval. What is the confidence​ level?…

A: We have to determine the confidence level and level of significance for 86% confidence interval.

Q: Suppose you compute a 93% confidence interval. What will happen to the confidence interval if you…

A: Increasing the confidence level increases the margin of error. This will increase the width or range…