A state nursing association is studying the yearly overtime hours put in by registered nurses employed at
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A state nursing association is studying the yearly overtime hours put in by registered nurses employed at hospitals. Since a registered nurse can have either a 2-year or a 4-year degree in nursing, a stratified random sample will be used. The goal of this study is to estimate the mean of yearly overtime hours put in by a registered nurse employed at a hospital. Using Table 3.12, determine
(a) the sampling proportions for a stratified random sample using optimal allocation.
(b) the sample size required to have a bound on the error of estimation for estimating the mean of ???? = 5.
(c) the strata sample sizes.
(d) the cost associated with this sampling plan if the initial cost of sampling is ????0 = $5000.
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Related Book For 
Applied Biostatistics For The Health Sciences
ISBN: 9781119722694
2nd Edition
Authors: Richard J. Rossi
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