Explain and give an example of how to find the Margin of Error of a Confidence...

Explain and give an example of how to find the Margin of Error of a Confidence Interval for a population mean.

Expert Solution

orchestra answered 2 years ago

Find the sample size needed to give, with 99% confidence a margin of error within +/-...

Find the sample size needed to give, with 99% confidence a margin of error within +/- 5 σ = 80 n = ____ σ = 30 n =____ σ =10 n = _____

find the sample size needed to give with 99% confidence a margin of error of plus...

find the sample size needed to give with 99% confidence a margin of error of plus or minus 5% when estimating proportion within plus minus 4% within plus minus 1%

Find the point estimate, the standard error, and the margin of error for the given confidence...

Find the point estimate, the standard error, and the margin of error for the given confidence level and values of x and n. x=45, n=97, confidence level 95% (a) Find the point estimate. (b) Find the standard error. (c) Find the margin of error.

How do I find the margin of error with a 98% confidence interval estimate of the...

How do I find the margin of error with a 98% confidence interval estimate of the population mean sales price and population mean number of days to sell for Domestic cars? For Domestic Cars Statistics List Price Sale Price Days to Sell N Valid 200 200 200 Missing 0 0 0 Mean 32.1615 29.7430 32.9050 Median 29.5500 27.5500 31.0000 Std. Deviation 18.31094 18.25088 17.86735 Range 75.00 74.60 69.00

If n=210 and ˆp(p-hat) =0.4, find the margin of error at a 95% confidence level Give...

If n=210 and ˆp(p-hat) =0.4, find the margin of error at a 95% confidence level Give your answer to three decimals

Confidence Intervals (Proportions) 1 Find the margin of error and 95% confidence interval for the following...

Confidence Intervals (Proportions) 1 Find the margin of error and 95% confidence interval for the following surveys. Round all answers to 2 decimal places. (a) A survey of 500 people finds that 56% plan to vote for Smith for governor. Margin of Error (as a percentage): Confidence Interval: % to % (b) A survey of 1500 people finds that 47% support stricter penalties for child abuse. Margin of Error (as a percentage): Confidence Interval: % to % 2 Assume that...

If n=30, ¯xx¯(x-bar)=48, and s=3, find the margin of error at a 90% confidence level Give...

If n=30, ¯xx¯(x-bar)=48, and s=3, find the margin of error at a 90% confidence level Give your answer to two decimal places.

Find the margin of error for the 95% confidence interval used to estimate the population proportion.

Find the margin of error and 95% confidence interval for the survey result described. According to...

Find the margin of error and 95% confidence interval for the survey result described. According to a poll of 1847 people, about one-third (32%) of Americans keep a dog for protection. Margin of error equals= ___% (Round to the nearest whole number as needed.)Confidence interval is from ____% to ____%.

Find the margin of error for a 95% confidence interval (nearest hundredths) of the mean test...

Find the margin of error for a 95% confidence interval (nearest hundredths) of the mean test score of Statistics students at Clayton State University given the following sample data scores: 87 85 56 82 67 77 73 71 90 74 76 79 81 84 Find a 99% confidence interval estimate (nearest hundredth) using the data in #12. The height (in inches) of males in the United States is believed to be Normally distributed, with mean µ. The average height of...

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