et Y₁, Y2, ..., Yn be a random sample whose probability density function is given by 0 0 elsewhere and suppose that n = 200, Σ²0y₁ = 20, Σ²00 y² = 100, ²00 y³ = 250 and ß = 0.025. Σ?v 33 f(y; B) = 684 e 0, Find an approximate 95% Confidence interval for ß.
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3b.STATISTICAL INFERENCE
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- Tip at least 20% Tip less than 20% Works or worked in service industry 22 5 Never worked in service industry 36 8 Find P(individual has worked a service industry job) (2) Find P(individual either has never worked in the service industry or tips less than 20%) (4) Find P(individual has never worked in the service industry and tips less than 20%) (4) Find P(Tipping at least 20% | Service industry worker) (4) Find P(Two people both tip at least 20%)6Hypothesis Testing Question: Is there a statistically significant difference between the proportion of citizens in the United States and Japan without underlying health conditions who have been hospitalized after a COVID-19 diagnosis? The proportion of Americans and Japanese from nationally representative samples of adult citizens from each country who have been hospitalized for one or more days due to COVID-10 infection is reported below. Please include all steps of the five step model and write a sentence or two interpreting your results (use p= .01, Z(critical) = ± 2.58). Americans Japanese Ps1 = .07 Ps2 = .04 N1 = 1325 N2 = 1287
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