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- Out of 300 people sampled, 24 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids.Give your answers as decimals, to three placesIn a survey of 3292 adults, 1470 say they have started paying bills online in the last year. Construct a 99 % confidence interval for the population proportion. Interpret the results. A 99% confidence interval for the population proportion is.In a survey of 3102 adults,1401 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the results. A 99% confidence interval for the population proportion is?
- A research institute poll asked respondents if they felt vulnerable to identify a theft. In the poll n= 1000 and x= 501 who said yes. Use a 99% confidence level. What is the confidence intervalA research institute asked students if they felt vulnerable to identity theft. In the poll, n=1047, and x= 516 who said yes. Use a 90% confidence interval. Identify the value of the margin of error E and construct the confidence interval.Which of the common confidence levels (90%, 95%, or 99%) would you prefer to use if you wanted to have the smallest confidence interval?
- Assume that a sample is used to estimate a population proportion p. To find the 95% confidence interval for a sample of size 250 with 140 successes, you need to use which one the following calculatorIn a survey of 2013 adults in a recent year, 731 made a New Year's resolution to eat healthier. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals.You're considering going to graduate school, and you would like to know how many people would recommend it. You talk to 28 people, and 6 recommend it. Construct a 96% confidence interval for p, the proportion of people that recommend you go to graduate school. What is the lower bound of this interval?
- Out of 500 people sampled, 95 had kids. Based on this, construct a 90% confidence interval for the true population proportion of people with kids.Give your answers as decimals, to three placesA survey showed 980 of 1500 adult respondents believe in global warming. Construct a 95% confidence interval estimate of the proportion of adults believing in global warming.A sociologist develops a test to measure attitudes towards public transportation, and 37 randomly selected subjects are given the test. Their mean score is 58.5 and their standard deviation is 19.7. Construct the 95% confidence interval for the mean score of all such subjects. Write the UPPER BOUND for the confidence interval. Round to the nearest hundredth.
