Out of a sample of 760 people, 367 own their homes. Construct a 95% confidence interval for the population mean of people in the world that own their homes. A CL
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A: From the provided information,Confidence level = 99%
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A: For 95% confidence intervalα=1-CI=1-0.95=0.05So, zα2=z0.052=z0.025=1.96
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A: In a random sample of 600 adults, 270 described themselves as vegetarians.
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A: For 90% confidence intervalα=1-CI=1-0.90=0.10So, zα2=z0.102=z0.05=1.645
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- In a survey of 2947 adults, 1430 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the results.A survey of 360 college seniors found that 305 wish they had spent more time studying. Find a 94% confidence interval for the true proportion p of those who wish they had spent more time studying.In a survey of 3344 adults, 1499 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the results.
- In a survey of 2024 adults in a recent year, 709 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.In a survey of 2130 adults in a recent year, 1491 say they have made a New Year's resolution. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals.In a survey of 2673 adults, 1494 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
- Suppose you construct a 90% confidence interval for the true population mean GPA of students at Taft College. If all of the sample values remained constant and you decreased the confidence level, what would happen to the width of your confidence interval? Edit View IncortOut of 3064 respondants, 919 of them said they have a dog. Using this data, compute a 95% confidence interval for the true proportion of people who own a dog.In a survey of 3500 adults, 1443 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the results.
- Out of 100 people sampled, 40 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids.Out of 600 people sampled, 42 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids.In a survey of 2273 adults, 728 say they believe in UFOs. Construct a 99% confidence interval for the population proportion of adults who believe in UFOs.