a. Mario quiere indagar acerca de la cantidad de tiempo que debe estudiar un alumno del cole- gio en casa. Para ello pregunta a 10 compañeros del curso cuánto tiempo dedica cada uno a estudiar en su casa. b. El dueño de la papelería del barrio quiere saber si es lucrativo implementar el servicio de foto-- copiadora. Para ello preguntó a 57 clientes que ingresaron a la papelería si usarían el servicio y cuántas copias sacarían en una semana.

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.

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

summarize your understanding of the role statistics play in managerial decision-making.

Express the confidence interval \( 0.111<p<0.777 \) in the form \( \hat{p} \pm E \).

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.)