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 A new drug for lowering blood pressure is tested. One group…

 A new drug for lowering blood pressure is tested. One group of 15 patients are given this drug, and their blood pressure levels are measured after 1 hour. The second group of another 15 patients are given a placebo (they don’t know this), and their pressure levels are measured as well.   To test the effect of the drug, we test if there is significant difference of these two data sets. Here is the summary of the blood pressures:  Drug group Sample mean 135 Sample s.d. 20 Placebo group Sample mean 145 Sample s.d. 25 Answer the question: Use rule of thumb, can we believe variances are equal for two group populations ? (True means Yes, and false means No)

D. El futuro: Un mensaje de Colombia. Carlota is writing an…

D. El futuro: Un mensaje de Colombia. Carlota is writing an email to her mom from the Columbus International airport about her upcoming study abroad trip in Medellín, Colombia. Help her complete the following email by using the correct form of the verb in parentheses in the future tense. (2 pts. each: 1 pt. for correct conjugation, 1 pt. for correct verb; 8 pts. total) MODELO: La fecha del viaje del programa de intercambio será (estar / ser / haber) el día 24 de mayo.   Querida mamá: ¡Espero que estés muy bien y que no me extrañes mucho! Estoy esperando mi próximo vuelo para Medellín. Estoy segura de que (1.) [blank1] (haber / perder / dormir) muchos pasajeros ya que es un destino popular ahora. ¡Definitivamente no (2.) [blank2] (poder / ir / enviar) dormir porque estoy muy emocionada! Para organizarme, pienso escribir una lista en mi agenda con todas las actividades que nuestro grupo (3.) [blank3] (querer / necesitar / hacer) cuando llegue a Medellín. Después de ir a la residencia estudiantil, (nosotros) (4.) [blank4] (perder / hablar / correr) con la coordinadora del programa de intercambio antes de explorar la ciudad. Un beso,Carlota

C. Los mandatos informales: Los compañeros de trabajo. The C…

C. Los mandatos informales: Los compañeros de trabajo. The CEO of your company is coming for an inspection and you have noticed that your co-workers do things that are not up to her standards. Using the images below, write a total of four (4) informal tú commands, two (2) positive (+) and two (2) negative (-), to create a more functional work environment. Do not repeat verbs, but you may repeat characters for multiple commands. (3 pts. each: 1 pt. for appropriate conjugation; 1 pt. for appropriate verb; 1 pt. for logical sentence; 12 pts. total)   BANCO DE IMÁGENES MODELO: (-) Alicia, no corras en el pasillo mientras que estamos trabajando.   1. (+) [blank1]2. (+) [blank2]3. (-) [blank3]4. (-) [blank4]