Una muestra aleatoria de n = 180 trabajadores del área tecn…
Una muestra aleatoria de n = 180 trabajadores del área tecnológica arroja que 53 de ellos trabajan en modalidad 100% remota (p̂ = 0,2944). Se contrasta H₀: p = 0,30 versus H₁: p ≠ 0,30, con α = 0,05. ¿Cuál es el valor aproximado del estadístico de prueba Z?
Read DetailsEl coeficiente de correlación de Pearson entre salary y cert…
El coeficiente de correlación de Pearson entre salary y certifications es r ≈ 0,075 (p-valor ≈ 0, es decir, estadísticamente significativo dado el enorme tamaño de la muestra). ¿Cómo se interpreta correctamente este resultado?
Read DetailsAl calcular el salario (salary) de los 37.500 profesionales,…
Al calcular el salario (salary) de los 37.500 profesionales, se obtiene un promedio por calcular con desviación estándar por calcular también. La empresa afirma que el salario promedio de la industria es de USD 140.000. ¿Cuál es el planteamiento correcto de las hipótesis para contrastar, con α = 0,05, si el salario promedio observado difiere del valor afirmado?
Read DetailsThe following data represent the prices of a round trip tick…
The following data represent the prices of a round trip ticket from Los Angeles to Paris over spring break. Use this information to find the indicated values. Round the mean and standard deviation to the nearest whole number. Give the quartiles to the nearest cent. $1352 $810 $919 $915 $1030 $915 $926 $1147 $789 $919 Find the following. Summary Statistics What is the mean? [answer1] What is the median? [answer2] What is the standard deviation? [answer3] What is the first quartile? [answer4] What is the is the 3rd quartile? [answer5] Save these results for use in the next three questions.
Read DetailsThe following data represent the prices of a round trip tick…
The following data represent the prices of a round trip ticket from Los Angeles to Paris over spring break. Use this information to find the indicated values. Round the mean and standard deviation to the nearest whole number. Give the quartiles to the nearest cent. $1352 $810 $919 $915 $1030 $915 $926 $1147 $789 $919 $1234 $1267 $1295 $874 Find the following. Summary Statistics What is the mean? [answer1] What is the median? [answer2] What is the standard deviation? [answer3] What is the first quartile? [answer4] What is the is the 3rd quartile? [answer5] Save these results for use in the next three questions.
Read Details