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Esmeralda Salgado

Esmeralda S.

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INSTANT ANSWER

Find a 90% confidence interval for the mean of all tree-ring dates from this archaeological site. (Enter your answer in the form: lower limit to upper limit. Include the word "to." Round your numerical values to the nearest whole number.) A.D.

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INSTANT ANSWER

Solve the proportion. (Simplify your answer completely. Round your answer to three significant digits.) 94.7 6.74 = x 19.9 x =

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INSTANT ANSWER

Suppose you want to test the claim that a population mean equals 30. (Enter != for ≠ as needed.) (a) State the null hypothesis. H0:

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T. L. verified

Numerade educator

Is the normal approximation to the binomial justified in this problem? Explain.

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ANSWERED

T. L. verified

Numerade educator

Find a 99% confidence interval for p. (Enter your answer in the form: lower limit to upper limit. Include the word "to." Round your numerical values to three decimal places.)

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Robin Corrigan verified

Numerade educator

A random sample of 5,913 physicians in Colorado showed that 3,170 provided at least some charity care (i.e., treated poor people at no cost). Let p represent the proportion of all Colorado physicians who provide some charity care. Find a point estimate for p. (Round your answer to four decimal places.)

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Robin Corrigan verified

Numerade educator

Thirty-two small communities in Connecticut (population near 10,000 each) gave an average of x = 137.2 reported cases of larceny per year. Assume that 𝜎 is known to be 43.1 cases per year.Find a 95% confidence interval for the population mean annual number of reported larceny cases in such communities. (Enter your answer in the form: lower limit to upper limit. Include the word "to." Round your numerical values to one decimal place.)

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ANSWERED

T. L. verified

Numerade educator

Case studies showed that out of 10,052 convicts who escaped from certain prisons, only 7,864 were recaptured. Find a 99% confidence interval for p. (Enter your answer in the form: lower limit to upper limit. Include the word "to." Round your numerical values to three decimal places.)

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ANSWERED

Hoan Nguyen verified

Numerade educator

Case studies showed that out of 10,052 convicts who escaped from certain prisons, only 7,864 were recaptured. Let p represent the proportion of all escaped convicts who will eventually be recaptured. Find a point estimate for p. (Round your answer to four decimal places.)

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Danielle Fairburn verified

Numerade educator

In order to use a normal distribution to compute confidence intervals for p, what conditions on np and nq need to be satisfied? np > 5; nq > 5 np < 5; nq > 5 np < 5; nq < 5 np > 5; nq < 5

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