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Mathematics, 27.10.2020 17:50 levicorey846
A simple random sample of 500 household in California found that 121 had no car, 172 had onecar, and 207 had two or more cars. Estimate the percentage of households in California with oneor more cars and attach a standard error to the estimate. If this is not possible, explain why not.
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Mathematics, 21.06.2019 18:40, calebhoover03
2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
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A simple random sample of 500 household in California found that 121 had no car, 172 had onecar, and...
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