Tema
Q:
Calcúlese el estimador máximo-verosímil del parámetro \( \lambda \) la distribución de Poisson
en muestras aleatorias simples de tamaño \( n \).
Q:
Use the sample data and confidence level given below to complete parts (a) through (d).
A drug is used to help prevent blood clots in certain patients. In clinical trials, among 4140 patients
treated with the drug, 137 developed the adverse reaction of nausea. Construct a \( 90 \% \) confidence
interval for the proportion of adverse reactions.
a) Find the best point estimate of the population proportion p.
(Round to three decimal places as needed.)
Q:
Express the confidence interval \( 0.111<p<0.777 \) in the form \( \hat{p} \pm E \).
Q:
Find the critical value \( z_{\alpha / 2} \) that corresponds to the given confidence level.
\( 94 \% \)
Q:
You are a journalist working on an article about
the nursing profession. Survey data shows that
355 out of 1000 nurses surveyed are
considering a different career. If the survey
ratio is accurate and there are about 4.8 million
nurses registered in the United States, about
how many million nurses nationwide are
considering a different career?
Q:
Exercise 1. How many residents had at least two falls in the last 24 months? Put the answer in cell B15.
Exercise 2. What percentage of the nursing home residents had at most eight falls in the last 24
months? Put the answer in cell B16.
Q:
summarize your understanding of the role statistics play in managerial decision-making.
Q:
It is appropriate to model nonlinear relationships using correlational analysis.
A) True
(B) False
Q:
A correlation greater than 1 indicates a perfect relationship
(A) True
(B) False
Q:
The bivariate hypothesis-testing procedure that is used when both the independent and dependent variables are
continuous is
(A) Continuous hypothesis test
(B) Pearson's correlation
(C) Analysis of variance
(D) continuous samples t-test
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