About how many of the 100 90 confidence intervals would

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Suppose strep resistance rates in all cities across the country are actually 0.05.

a) If samples are taken in a particular city to produce a 90% confidence interval for the proportion of all strep cultures in the city that are resistant to antibiotics, what is the probability that the 90% confidence interval succeeds in capturing the true population proportion for that city?

b) If samples are taken in 100 cities across the country, to produce 100 90% confidence intervals for the proportion of all strep cultures in each city that are resistant to antibiotics, about how many of the intervals should succeed in capturing the city's true population proportion?

c) About how many of the 100 90% confidence intervals would fail to capture the true population proportion?

Reference no: EM13619480

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