Numerade

Questions asked

AWAITING AN EDUCATOR

Write a paragraph about your thoughts on this video in the discussion thread on the Against all Odds: Test of Significance video.

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ANSWERED

Hoan Nguyen

Numerade educator

Express the confidence interval 17 % ± 8.8 % in the form of a trilinear inequality.

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Hoan Nguyen

Numerade educator

Express the confidence interval ( 63.4 % , 69.4 % ) in the form of ˆ p ± M E .

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Hoan Nguyen

Numerade educator

If n = 160 and ˆ p (p-hat) = 0.55, construct a 90% confidence interval.

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Hoan Nguyen

Numerade educator

If n=520 and ˆ p (p-hat) =0.83, find the margin of error at a 90% confidence level Give your answer to three decimals

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Hoan Nguyen

Numerade educator

You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p ∗ = 76 % . You would like to be 95% confident that your esimate is within 2.5% of the true population proportion. How large of a sample size is required?

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Assume that a sample is used to estimate a population proportion \( p \). Find the margin of error M.E. that corresponds to a sample of size 332 with \( 11.1 \% \) successes at a confidence level of \( 80 \% \). M.E. \( = \) \( \% \) Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Round final answer to one decimal place Question Help: \( \square \) Video Submit Question

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Sanchit Jain

Numerade educator

Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 80 with 57.5% successes at a confidence level of 99%. M.E. = % Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Round final answer to one decimal place

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Express the confidence interval 54.5 % ± 8.2 % in interval form. Express the answer in decimal format (do not enter as percents).

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Qudsiya Anis

Numerade educator

Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 143 with 14.7% successes at a confidence level of 95%. M.E. = % Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Round final answer to one decimal place

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Kenia r.