7. What is the purpose of the meeting?
8. Which chart shows the company's market share this year?
4. Who is Anne going to write to?
3. Where is Mike going to take the visitors first?
6. Which product has been the most successful?
5. What’s the new time for the meeting?
Listening Part One.
For each question 1-8, you will hear eight short recordings. Choose one letter (A, B, C) for the correct answer.
1. Which chart is correct?
2. What kind of packaging do they decide to use?
En estudio especifico en el que se deseaba conocer el tamaño muestral, se optó por suponer que la desviación estándar de la población era el doble de la media poblacional. En ese caso, el Coeficiente de variación usado debe ser igual a (poner un número con un sólo decimal, por ejemplo 12,5)